{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "310676",
    "entityType": "User",
    "nonce": "0xda8031eb984b98739e7fa4eb20fee4e1659d63b5537c1a33a8e5d47208a1e90b",
    "signature": "0x46f93432acd92f6cc932533f8bcffe5a991e12d9252b1948f1a2a8a67fcefe293fd301a95032e8e44bf8cf1871b3b9dec79425e4bc8c082012645c099535aa7c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}