{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65605",
    "entityType": "User",
    "nonce": "0x8c3f393fb43971ccadae83c669ea25384a529007b06a6b5191eb2d03c4464e7b",
    "signature": "0xc5121bb6dc887796b3e40d751f12c98beef0dbc451bb65bf4c1f594d80c7d60f14a9247062026e476061c2538b90031b1076a3f47a2c2e5a989867f19b98b1431b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}