{
  "manageEntity": {
    "action": "Update",
    "entityId": "63348449",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x72e1c415b3ab055b7624958a3a44b589dd30125e7a4252c9dc803748cfd2f20e",
    "signature": "0x9a12202ed7571981aa8eae1b90ded5f9b233f65419020afb454240a6064ce7207a0adf8770eefaae13c9d63704744939847ac104189abdbb3205221f6d7d0bc81b",
    "signer": "0x213697efF59e0eb4ce75257956a4F693e56C9E3d",
    "userId": "63348449"
  }
}