{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "990836999",
    "entityType": "User",
    "nonce": "0xa5794d22779595aa10a0353a6378bf32989265c791b2bf46e0bc5fd83043e3d8",
    "signature": "0x974cb1b375b5ddd5ddb10a11cbefa3d8e1a419cb64abb857e2e6edaee28d772303f091d047da0f6136352611a6f681ba0d6145acc6cf971a59d9a6f6387eaaeb1b",
    "signer": "0x5156122E7f53a879786546b3133306b9F7814b9b",
    "userId": "781663071"
  }
}