{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x840de186af2d18288ff7a7af9077f77d080f6a88ef66c4f99083b5655a19c6c6",
    "signature": "0xfbf007261f773831f4ac39418e04d7e78efdad2c797736781e6e4220f8aa473d78b1f3a3d0cbe71d86f760c138734b187f755c21df4882cfd31f5214e42403d21c",
    "signer": "0x51b3C55CCBf38453853E1fac9983a9F06CB12BCb",
    "userId": "93176421"
  }
}