{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139264",
    "entityType": "User",
    "nonce": "0x14d7dcb82a3fcb11d5d97a6c6b8d1eb39481fbe485aecca12f64443615c65740",
    "signature": "0xd998060ba0c816080eb6577fc2059f83b5929ca2388602d8eb12d9625adf0c913d9f45eb6ef0e724f45fa9d6f0ecd193aaa1b8dd217a5ff7917c05e98c009da51c",
    "signer": "0x5823e56644991c5f5f29870830175996Edb011c0",
    "userId": "433764837"
  }
}