{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8a0f42ce7b0a1dc20059cefe7743bf353b1f2fdc1a339cad0c8300db990be40f",
    "signature": "0x0d8f08de9d53eed5d8fd09c6f321d0b0f681668bbda474f77d0240c15722fba825fb955349c2f1a41a337f2af9345a71e681d79f8af03fbcbcf2ef6a3512ab0b1c",
    "signer": "0xFA2BcB8D14637859aa98a87cbe91187525bbB963",
    "userId": "965833467"
  }
}