{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x1a2fae1d2ba414edea7c1d51c873148fc1a4b86663b2b5e968de5ccb3e229e93",
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    "signer": "0xd543a0232b294823FE594e2f4B732D93B92B24cf",
    "userId": "2559"
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}