{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x5852fdcecb7fbc9de87248f16fc73db1ba34c4224c68cb43cce34e85149c8c88",
    "signature": "0x18dd595d1ac8ef37bdf741ef2ef6d851932a90b43917d73fa269ba2a08340ca4686cee990571eec58c2b7c55820a881e79d8f1accb1f752ebf7d6dee7b3e9dcd1c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}