{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x04303dc2c02075e6b224d762ba691c218732d4cd929620c30266dcae87ef7cec",
    "signature": "0x23ad55edceba047c7482ad0f8c6aacb89886047b35d3486710bc20157632a8e1349a8470dc4d8885e8c61ce41764bcbfaf0e00a16b0f9b221913021899c6a6141b",
    "signer": "0x6788f24170b5E314c54Bf1D68EF6945A7EA6a911",
    "userId": "921442082"
  }
}