{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152331",
    "entityType": "User",
    "nonce": "0x1342e0a595d7c37a984470f302a0d3111b6f0235611f82e11f983aca17b38dcb",
    "signature": "0xe8ff4a62ccdfc0951fbecf4cf8e04a63b5065728e7f72d623a0278d71a73eea35a8822f96464b89d160b0a06eda75821e4312ff6ec137243ac2acb51a83ffba81b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}