{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984215347",
    "entityType": "User",
    "nonce": "0x132c28f5e359ab64cf30da8e0a0735de27b92549d00c883253be8b3418fcbe4a",
    "signature": "0x2434a48e0a1b4a973a96fb52ba234b16d5c870bac67bbe9fcc889a4955c5226f042f80a75f243416be0f8ad35db1cb4825255369877091c202e16e84a86f5dfc1c",
    "signer": "0x4f4C18220D065b5195F09E23993B70Faa751F0C0",
    "userId": "583021207"
  }
}