{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x670cdd318bf743d699c0caef2a2899c862d9172672ab5e25d22d56c5ce1e9889",
    "signature": "0x7933b28d8983c9fcb9680535fce51d8e1ed0b2cbc2bf720b34091479cbeb426f50d4aa3de4fdc3620d9afb4d215117415832e543729ccf6b975d533e0598b0e71b",
    "signer": "0x40f9c8F93a5aDBc620CB9B7707fAbcbA2fDFaBbA",
    "userId": "765901034"
  }
}