{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67658",
    "entityType": "User",
    "nonce": "0x03c2a65ff476d7f3ee7e8c8056b8ee90994a95caf6ede92fc95e769fbebbaabb",
    "signature": "0x2d799f78d07c9c4a7707060b30ede12effc309ec84b6b9e1bc575535fd68099814d26721bd2f570ad7c79540685deff98fa6f5bfd53ed83f5428d6994e20bea61c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}