{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x35cb16b726ab202a155d5b4ed8aaad505f4e91784b40bcb0b9bdc1168ecbf233",
    "signature": "0x2538d1d59b66d25bcac3761385644e61aa14226982aa050f1e2798d17ca3cb501e29e36d317f29724378a628f124207f0d49d5d673bad1930be830f7c42b2b641c",
    "signer": "0x1187dcD53e5D3Fbb56FEC862304CD0e460A4c74B",
    "userId": "102369832"
  }
}