{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854498636",
    "entityType": "User",
    "nonce": "0xb895b4ab347a8aac253c7e1bed3448812b4bd326c6f4efb2c7e74b4219a37137",
    "signature": "0x17719f674905bcac13e53360376f17231eedae32c1dd2fcaf481905adbd133372109733c4c0dcbae7770eba265824405adbaf61fe3a33507cf6ab5acf1be28091b",
    "signer": "0x12705C8Fe8CE886CeFEFa0d4d46E906f2c35C954",
    "userId": "477934274"
  }
}