{
  "manageEntity": {
    "action": "Update",
    "entityId": "224019652",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe1b9f2a53114aa2da3c66919ec3c7d37df869a268b930d18790f179e4e2059b1",
    "signature": "0x18f7671d2e5e642bcbae645e2533d3ac6210849b737885f1ed2d9dbd1c06432a7ca9f9c8d57eb41b4e0ae4d185c97f33cec2c7f2ce239a57430cc64fa66485361c",
    "signer": "0x7964a5eF7E9a780013d3886B40ca04443D69588D",
    "userId": "224019652"
  }
}