{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd45dd0577d464339ec1b3c6de6c2f7093c74b47320721d4a43ffb0abc9ec4db5",
    "signature": "0x66c183f5d1c13cdc17cf38b8701fdfdf32e865e4f62fb91d649546173a808b2e5acad3eb858759d0e48979e0118edfe06afe549791aed173a43785a2b89cdb231b",
    "signer": "0x5Ed8337eAFC383EaE2Ca4Dd3a3A8b49d0e3E0b89",
    "userId": "325039184"
  }
}