{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaac6960a6d705e991d31f078717d9f39e3cf52739d31b38262937e92ad5d8406",
    "signature": "0xaf1abc461a731df3f12e1dbe65fecbe2b60c1c5570dde58217ed3c06dbf18d1e2c394ec3803244a1b24bacf5c579991e45c48ed0fa83e91e88ce8bdca35cc76f1b",
    "signer": "0x2D97CEae6bBE4e59FEcE389dd5826511497a21bE",
    "userId": "223863220"
  }
}