{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "119987",
    "entityType": "User",
    "nonce": "0x7a57bf52549f03e4bb395e6da5fa745d113e51919ab53c1aea6b92cc5d772bdb",
    "signature": "0x415f075e17abecf3bb661f4a424ec19133f7063c5b6355c2f27c47d76b67567970b94457d6619c861817268dd85def60dd1ae5e7cb955570aae131be8ea0b5a61c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}