{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7bb4baa7e3bc28dcd4d84e634183eff335e2d0d6cf05cd907bc27766406a15c3",
    "signature": "0x33f714e39394202461dc4d3b95e14a9eae553fd1aa9753662ec6749bbbb3a8012e0c33190a8777a42ee0ddf447230b76c5ca0c29516818806592c3fda2d37cef1c",
    "signer": "0xBE18Ce43b328E31dbB889eAea64B771C872fFD8A",
    "userId": "403066781"
  }
}