{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "617656",
    "entityType": "User",
    "nonce": "0x64c989da74ccc0f39c4639f6ffd7360b90d7b2f88046c847cbb6a734be7a55e0",
    "signature": "0x88e4a06c0112becec87e50b2a3becce0967b55825fda20de8d60e53771a72b623921bdc25a0914c7f53ae7c21d9368233b14ac4d424aed04a6349ba36c6c52da1b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}