{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "219968466",
    "entityType": "User",
    "nonce": "0xb2bcfa99d56274c7b5c78b8466bc8199acdceca17796dc8415f400511be05563",
    "signature": "0x1f5339b2e24a3810ebbca266e4da8340a9d36c5fe8cc165ad03a8ccbaf45ffb83eb73c6a6ead2098cc2808bcf1470eda27aab838b4a57d7884ed470c41f9057e1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}