{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbb6685e6f16897053655e941054bca1a615704a0f6a348e347f24101c70c259c",
    "signature": "0xcd7c19e566f22c7b2310a6b8f6642bf8220195228517b5b5499786cdb7c617b45883be355db303fcf338a8213c338254a9b1c41d0fd287a7ed5b5bc0922a93481b",
    "signer": "0x964c93e100186b8Bd492f81a941CF4184E351b6e",
    "userId": "846192294"
  }
}