{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89511",
    "entityType": "User",
    "nonce": "0x6a78f8b7b90ca0264293f4ea316500b97989463911d1743bd67b28a0f5bb14e4",
    "signature": "0x519d244f37600540ca12195aebc0d96051cc28bd086fe7fc995475e39004db766636f50a37fa537265ed56c6a3222928363fce03b4e1153aea4fad842998872e1c",
    "signer": "0x0a5148A3f132E6696c1Cd3FDA8465fC5fF17d3D2",
    "userId": "803288761"
  }
}