{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "76457",
    "entityType": "User",
    "nonce": "0xe7549b36bf0eb94fa79cd6177fb94c9948cc4b0a42b9f3b6e2e6b448fdc369af",
    "signature": "0x28865d38dc9246dfdf0e02a8d910f8cffc0def49434be13802c9d20de3ea65793726eee887d288e915d9b1726b835a14c8027c815b838e5353261ad153ac4c5f1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}