{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "496856665",
    "entityType": "User",
    "nonce": "0xf841caf73ae3f9590fb5448ace63764e41ed071b50b18b418b4f51451da93915",
    "signature": "0x928d3442fbc7f842c3f0a83eeee9a76b916a7b103e55a38a05ffb0eeec0e50c028939e9be624985ef0d5c36b80d4495951b0855da15c691b065a19f4318e98531b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}