{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "846451325",
    "entityType": "User",
    "nonce": "0x66f44c337f7a2b325713a9005347489ac7e278f8a4ec2b4ee8eb0aefb4b9a2d6",
    "signature": "0x74b760892cdb5eeac5f2f81983902422295f36523dafa94d1c8274aaf852e7c45ec81bd21701a0110b0f8dd0f81e65077589fb164fa4e8bf24ef6fedb673bf231b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}