{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x43658b9411d2d88ccdef4ebcb8fc2005a2da3f0377fdd9767cd39ab656a8c6bb",
    "signature": "0x80eb13c465154562fb4623ace9e6c094fffc3352a9522fd624d8dd44d7964fbc1282952869c15501fe7a5fabaef2d71971df9f4e88d046d7a3741e270cb97f4b1b",
    "signer": "0x65C5a7f8B0408F675AA0436F6B1d4d9F14FAc436",
    "userId": "635352921"
  }
}