{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x827d86cdcafd7ec7e16c23a7387daab35a55ffe2fb676cd15300850cd63aa8ea",
    "signature": "0xe273c74c41dd1de722cb6cd43b7717f4ee4c07c0e4f2487af8f2613169465c302ee09c3d252cb1a17ce97801098ed789fba9b8ec8c8b733c40019654d51b606e1c",
    "signer": "0xe7655B2f2a6B494bbcda813813c5C266d1c3bA17",
    "userId": "394442582"
  }
}