{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343945",
    "entityType": "User",
    "nonce": "0xbed21612c5a89bd7dada44cbed44707c19c96063de3ab2b9dc7fc71756eaca6c",
    "signature": "0x008cd1cb795a438ccbeb21c2f4a82c5dda12ad8977d1887be0b5d6f4e717d2d93efab6952391a236bc613089f3c01284a4be0a511f9f1c9ed64809aae69d5ff41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}