{
  "manageEntity": {
    "action": "Update",
    "entityId": "533673360",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4d5193285ee3f4aa78563a23edf03823cf456f02a8c3a1a12f2699f94528c02e",
    "signature": "0xc4e3ed65d782fcba6456877bc74bba5ec60c71df856b1ce7f251f38a523b1d8a19dda076a23d53d580dc486d1ac1a60ae44b40ce3e7525cb3c6420dc495b074f1b",
    "signer": "0xC4e201BEaDD3933E76e562c99f9F367Ced3f68d7",
    "userId": "533673360"
  }
}