{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6367af6c56dca56143d5ebe31f7e3bc912e909e62015e8e4d13c225edc17bacd",
    "signature": "0x9d27c8bca7e47efb06c8e9a5ff8217f1ec9007bf11d1dab4f75961e36f3336507969b11c2e5ba8a69e4db966ea03c85ee1e357a73ed79878fccbc82480e010141c",
    "signer": "0x6A7681009B170d41A7816a1D53cb77Ce710c16D8",
    "userId": "920693804"
  }
}