{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5985fedb9fc6965d496f3f5f96b4f6a60f717440c67d6aaeb8db136b6cd65ce1",
    "signature": "0xc962ae94ed65f08ab26bce3205621128a1adc87015e1db4230b31dee80f8c84b563d6d7e6bb72858dfde7f4a704a5f9fd81fcdf908bea3cee6e7d7bb9442716a1c",
    "signer": "0x63C6C2185f805578D34F3Ff650c0e1cb230093f7",
    "userId": "457665534"
  }
}