{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x94e7f59826239072997ba4a13a2256d10d819ecf37bc1b174fc2b28478aba80f",
    "signature": "0xff33752557f4f13a38025675a7e6928866baa3c322d51dc3c7a4f11a23b8ccf13c7ad8cded3abe037bff1b5f6e9c83373ae7dda51f9fd611e4a480c84128df5a1c",
    "signer": "0x366F7A9B90Bc9EB9e98EDaBaeeDB5B9365be1F81",
    "userId": "793540177"
  }
}