{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf408221a0123662be501e40f8b2e2333e730a164afa9219413e9525355afdce6",
    "signature": "0xae75ba022848c9c5ef9644ed7a0ec756e8c407e91244b5743ea8aa85159dca03198b9370e3302b6aaa95fa6ad46095c4301ee15189b7b4adca50a15f7c83211a1b",
    "signer": "0xe63C524283Bc750397fa749AF4E45e97f4381dF7",
    "userId": "783369371"
  }
}