{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xed2c1d859a48991223a8e7ab408b0994595275173677e95930d50dace69f7839",
    "signature": "0x494b3f55e4502e923f2b153834629f6356858adf943b373816f189ff04143b94365a72e1084e6ef7b1dc76e98580226e05166d15a96af07e3bb67415dcd5451b1c",
    "signer": "0x277E8d66acDc026c60d66fFE6865811A4fEf8274",
    "userId": "5453715"
  }
}