{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735980234",
    "entityType": "User",
    "nonce": "0x21f5e084c84f98305062699ec6af2c1138e3f47d1d1f6459baa634e3c4896cf9",
    "signature": "0x9a25eea2fb9d4091fe854779dac289c4b21f93113750ceba470f2e2b6e152e0e36ef7be1f228ffa54d12ef5a75c44afcd9d7c9851d463a66ba4e565e34dbca7c1b",
    "signer": "0x12705C8Fe8CE886CeFEFa0d4d46E906f2c35C954",
    "userId": "477934274"
  }
}