{
  "manageEntity": {
    "action": "Update",
    "entityId": "341525072",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5a99fda967d72fa863a873d3b491b17c168709e277460eef07873a9005f2f1a8",
    "signature": "0x4766104c21cbc18c2aede8b59e94673de379f6d14aaf73550757fb96c1def71a02268394cd67f9ba641d4b0b1998eb7f9ce79e4cbbaff31e46fc1681e3bc352c1b",
    "signer": "0xF3D339554B27eD7fC75fD237d83A8576f7068124",
    "userId": "341525072"
  }
}