{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964257878",
    "entityType": "User",
    "nonce": "0x9589e771c0cd2b6c9c3de3e47aa7647f0b4c16b6d76e0f1da86e9121dbcfa993",
    "signature": "0xb0b6bd9463d7e8eba7694e976aa8e91ec78174be7392d2bd424b8f8cdbb6362156ff449126df2d4334046a001ed5d14776e9cae98db54078d5f9ca9470a2a04c1c",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}