{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "712688986",
    "entityType": "User",
    "nonce": "0x16189dc4b25232c5f2a9895b1a2a1e37579bcba5742635a5da8b910552614a02",
    "signature": "0xc18483d70f2ef8fc3060ff2e4e6915e7b25e093111070b888da7551e3e2b322b7c66fb5d17278ba018ea048e8486cadeb8003d3edc62eba2c9e8b6282daa7e531c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}