{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "320",
    "entityType": "User",
    "nonce": "0xe810a2fd830e37bd57ee2e11917c9166eae1d990387bc75532b9432bcf085bf1",
    "signature": "0x5b9d768328a2060b3dcc9a630b8580f79bcda00d31648c1294f7364717b07b160fc74b0aae7475aa301474a1a066f4917d9dfbd037660593719dc3bfb0c312cf1c",
    "signer": "0x222534475146193b99B68F2E3830ED2b44307C2D",
    "userId": "991417453"
  }
}