{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xe4d27da492b5abecd2c69461d9e9a908ad318ae275671098cf10fbf8930bdcf5",
    "signature": "0x4ba14f5a6c6de2b233ee15dcd99d9c69be59fb8ddc9d1395f9bed2946e885e766f0a9552e9a40e785dbc1c5028c3d4027353d0133bc8016e0eb3bc7ff25cd42e1b",
    "signer": "0x29EEda1E7eF2d7C7B5dE243F5b7de53F1E2d23Ff",
    "userId": "817425333"
  }
}