{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x483259cbfc7bc1e8d6b2a47c49c60328555c27a467df54beadef9012c0900724",
    "signature": "0xe90297d23056e7438f074eafcbaafb717523c4849ee8413cecc4a6f23cfa2f1e64ec568fe93df9eb3a2ed361abc5d40bcbc88d6d7624f44e636bef18a3fe4a461c",
    "signer": "0xDB3069e47C38Da8d375A3eC24D197edce987cebC",
    "userId": "948417971"
  }
}