{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318437",
    "entityType": "User",
    "nonce": "0xdf0ecc3f154f96a259193db2b34026a1cd7f760db2a7a4866f4c5fb45f75a41c",
    "signature": "0x4f043245e2bdd8aac7da021db0b203fb800748ca456cae8bc9e9222ea7d260e403af7dab6aaee87f1cddcd921b5d60d6612c79131bf99b120684e877bc30697c1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}