{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0xbd8fdc77e5a78e8fccc4e87d0b22c948ef2c5878411d14944142dc4ac77e6474",
    "signature": "0xd2ed86f93820ee504baa25352c9080f0f41c8e89d6b93e2a9f550fb5d7a055d460ef77675e1be6dbe07e240cbcabe5b1685bead8694fc5b01ea35fc4d0eab5c31b",
    "signer": "0x2B28feb1CA15953a5a910C4E741698a24e8b3FE9",
    "userId": "887020893"
  }
}