{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "678408994",
    "entityType": "User",
    "nonce": "0xedcf8cb9096ddc63d69cbcf384db19a50e7713730bfecae4b1230da3d08082ed",
    "signature": "0x190b1e611e7812788717d487c9d33da1ae40309391d185c34c2efd6f39cc396359c890f6c6a47ba3f6b31c92b671f5bff61485e86352525dc3c6234c51bde5901b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}