{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329513359",
    "entityType": "User",
    "nonce": "0xb96efcea37a98bf1b86d980f9412f845f37f1dd7e03f92bfa43e0fd5d6bfdbec",
    "signature": "0x9977e3a7873cc5388f613e589a63476cea72978db11d8ec1a9d286570ae079126f34a1d75a6c0b0006300504efd377beecb8c66192a2b864555930c5cc64a2ee1b",
    "signer": "0x647f7C07Bb90cCeC21Bbf4C1Ed89df3Bf5020eF5",
    "userId": "879984932"
  }
}