{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1784e543f6d994fc823cec893548ed4e1ae1cf7143548acb69a3e0d7ce14efed",
    "signature": "0xbb06159cabc72ad9090658960ff31fd7adb8476deff5a9f2ccb0e71de48dbf836e809d8a92749cb4487d404ec79665df1bc4d597a31ac8572290b73d54c5da8d1b",
    "signer": "0x949F6b40133FD2b19ec9BA66FB86B1F9946588Fe",
    "userId": "920333048"
  }
}