{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "243887839",
    "entityType": "User",
    "nonce": "0x24143a2bade2ce35ff5e241cd5c240513c55310f1d79672666a13dd3c392201c",
    "signature": "0x8def52a49c97eff13d08ee5fc5d176ad02cbb8ca38506a4bfb06cec32847066c74fb62448bce33e21804af58f3e685cddc6a36491a2fcdd9c9e229579bb0b75e1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}