{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x2371c89867829f4088ca27968e674612e0bc87eff5d5de7bc82454389036f687",
    "signature": "0x16f6fe413e146a386b161847d05f05440cc6669c3f625237f634f0ba81c2ef27782afe4ed3e9a9a2ef1af4e9fed8267125dafd243e02bd8b067186bf76ff42801c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}