{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "131891",
    "entityType": "User",
    "nonce": "0xb12869f240c3c34d5d6b5baae75aab76576547ff1edc8c1e6662ff7c146ebe8c",
    "signature": "0x757355b1671bf39b044a884ba0774d639bc7ef9308da4a7368fb5916fa22775a798325738d1db4fa5bbff2ba49fce51e556c738d8d886a7053cb02c6296ce0c91c",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}