{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "874058807",
    "entityType": "User",
    "nonce": "0x93437768bd2b2d6543dc365147f9e2afd78c8bbb7eee829eca1f9fdc352ca087",
    "signature": "0xc6c4f25aa20dc29ce751231fcc0c0b75c85268ad994aed82171c5f9e5d27fc0a1fb1ed76fb6c0c2646e816d7d165845b4ef6392ff9a88a898979bdd0b4d08c0a1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}