{
  "manageEntity": {
    "action": "Update",
    "entityId": "561298785",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3069df793427b5c57ad93dad83145dae80042213f23953ca57e488f61e0d6540",
    "signature": "0x3c8c5043f38128ca4c0c2b0caa3932780639c1d36b9332f6cfc0b2928594f6310980957896c71552421c3777096d87de583cb3555d55be2adc4190825c9a8d961c",
    "signer": "0x0C88bb0Fe1585e94f57A7EE989BeF92B92cb501f",
    "userId": "561298785"
  }
}