{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142952",
    "entityType": "User",
    "nonce": "0x0d73d3d15b11bbeff820d86697f18bea1407f5d650a6b41048c75184400575fa",
    "signature": "0x8dc1db676138c10c745df153c402b1bc22d64e85f1904580cae0e613eaaa46510c27502cdc1a5f98a62eeead91e726b7e601d8a50473b7d59d7e0b3f2e0c2e3f1c",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}