{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135340",
    "entityType": "User",
    "nonce": "0x17aaff9f5aff170d6cb63b65f205bf88c88cf27cc117787d5b3bb241b770e528",
    "signature": "0x64091659ff5f31aeadc15e5abc589f14b4f70f8297d47e6904ded5c3d6a9e13b7c55b10527e807ce130045bec077f634091672654829477cffcdd2bde1566e051b",
    "signer": "0x4f4C18220D065b5195F09E23993B70Faa751F0C0",
    "userId": "583021207"
  }
}