{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1880653",
    "entityType": "User",
    "nonce": "0x9fd9ea26aab05cc4ac29ad2a7bcffd2b77a46c648e77fef472f052749ae3bde7",
    "signature": "0xfd1d13dbd5e7cc3b30271ee124b3c487c12f8c28302a3b5dcd482938fe2da4264486ddc071016c0761b7c4ed9dd03f9600cff9f146f1781730724e114ddfc18d1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}