userId 0 The userId field is required but was not provided. The userId field does not contain valid data. This field must be a numeric value. username 20 The username field is required but was not provided. The username field does not contain valid data. This field must be a string value. The username field is too long. This field must be no more than 20 bytes long. The provided username has already been used. password 20 The password field is required but was not provided. The password field does not contain valid data. This field must be a string value. The password field is too long. This field must be no more than 20 bytes long. firstName 20 The firstName field is required but was not provided. The firstName field does not contain valid data. This field must be a string value. The firstName field is too long. This field must be no more than 20 bytes long. lastName 20 The lastName field is required but was not provided. The lastName field does not contain valid data. This field must be a string value. The lastName field is too long. This field must be no more than 20 bytes long. emailAddress 50 The emailAddress field is required but was not provided. The emailAddress field does not contain valid data. This field must be a string value. The emailAddress field is too long. This field must be no more than 50 bytes long.