{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "766869650",
    "entityType": "User",
    "nonce": "0x3e8b91feeb5f0c06cfc4cd053181c65dc07f9bc4dcf35b9de66b73a0c68bb260",
    "signature": "0x5e753893fcfe4a28835a99696b70565acd7ff8f1f917c67e0e3ddde9b57ca6a258ef4b3a7d37386bfd56802496a55e76e7ff896a796b03618ae0c011c0b2b6891c",
    "signer": "0x775bA7FB8a4FF9354c099465ca493BA949FdAca6",
    "userId": "597677270"
  }
}