{
  "manageEntity": {
    "action": "Update",
    "entityId": "494752038",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3f8798d15bd7ee27833d0693c43165312fdad51f0ae91d1ced9f550ee3322953",
    "signature": "0x33b959831466c2a8b5feede47c09292efd0e37b1788c2ff6cb8a307dd3a4e5050f81d7f24a271c499c467dd95c894ce6d60570e7e2e6a156f634e937a7edc3b61b",
    "signer": "0x5CF8E6b23746115625f0Ef4B24FB22d51ad781eb",
    "userId": "494752038"
  }
}