{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396110484",
    "entityType": "User",
    "nonce": "0x4fb679525ec93a04ddae0544923f1c46f1a8ffd644d8c763019bf105db0d0213",
    "signature": "0x42190844d1ed77a2532c3c995c0c90cee714fb9c9510428fdeb3b746876db4f84cddad4846136e5068edbdfb8b031207d83c1329c2b4494839c68cd7c0d8825f1c",
    "signer": "0xcd864e8A0A043bf1B2DA4106C35c1daF234468a5",
    "userId": "784246910"
  }
}