{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "300177",
    "entityType": "User",
    "nonce": "0x8338024c6728447343bfd1598cf013128c89f7f06cf4e525dd9b60c82e2d2668",
    "signature": "0xc574a629b1afdabbbb6ee5a8384e92fddde231bc3e5de2039ff895e68e0dc04a42de569cc7ba1cf5c6ed7cae181aaa1ff6eaa5d42e82d1fa6229d59cb1d431a11b",
    "signer": "0x4993C3631eecd6e8c1635351A99C2103C7d6Be4b",
    "userId": "906184213"
  }
}