{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1f6819a7675253689a59f89ca02954c9490912ec14df88a45a680e52dde1b0da",
    "signature": "0xbc7d15aeed7384f38daf1c7e9eb9d9a02baf051915cee942b3703c7e654271a449677ba5398476466d100168bfbf4ccd3d08cb699ca0a52c54eea180e51fbbef1b",
    "signer": "0x67abb320A78FDC0C02a99bD656091ab8e8b2f78B",
    "userId": "482802618"
  }
}