{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xf62229f5dc8d598ab6a131da481a2396e23a1b2b128966b4f09fe1bf10f8b027",
    "signature": "0x171d612c4166c5e889da4ffcf1d897e1810db15d1911b227415b0f340cf7a3ad4f18e9887a12761d8494b1b086e2a2bf6a4e6b5d2a51b02e75378910fcf188221c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}