{
  "manageEntity": {
    "action": "Update",
    "entityId": "950485788",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x12e4c6850a44d9a77c1f583ac54493cc713aa29fbd1ca210f4a392f886ca2992",
    "signature": "0xb39004f73e8afa3fcd15d1caf70f11599f2745ce6d572ebe83f96a6bc5e07e691f31da76e34d1d3d1bb170fe5975d55840eca2ced3d25594d4ec486fd8781eac1c",
    "signer": "0x6CF29C21c9C0b405C773f3605658C095Af4c28EF",
    "userId": "950485788"
  }
}