{
  "manageEntity": {
    "action": "Update",
    "entityId": "739430769",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x19ed2e0ffe99886fc113381188bf9c437ea0264e2e49d1f9d2a7f71884ce3dcd",
    "signature": "0x449b45143b643ca943c395a3acdc46551c9276da157a25fba90176e8cbfbd65b2582ac4078d9616783bf4b88ec0210d503f1d6888826ac352c2640dcd3b486201b",
    "signer": "0x08292BF95843e388356266dDC4681aCeF2Bc2c18",
    "userId": "739430769"
  }
}