{
  "manageEntity": {
    "action": "Update",
    "entityId": "958967279",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierazgj6azqqp56wrpn323x6c4ay6w6sx4d7q2g3lhsadbdxaza2xrvq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1190834438}]}}}",
    "nonce": "0x591037d1177807c68d5c83dee421313be6490f24d0928206a7c707f291fe6581",
    "signature": "0xbea66245a8fcbb44dc6b0f87b91c565ae0f4c9e338fd9a7ac6a0004a9dce78c76b09719200cac1ced7daf67c67f7b655eaadd112666a0298b6f90d73aca55a4f1b",
    "signer": "0x6A72813Fa8AA17b1147243997B76e8191475e74a",
    "userId": "958967279"
  }
}