{
  "manageEntity": {
    "action": "Update",
    "entityId": "100090397",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5e1b48e0dde35d4fe14d46b2d94604fba1d2f47ef57245fc53e8fa114edbfe7d",
    "signature": "0xcb8fdcd97e37dbc18c6bbdec34a6f2c92a06fc0131637a2d76e8dd11d7e80c240c44f96c1bfbaabcba796d3e664be112176097f396d8d8891396834872868d251b",
    "signer": "0x0Cb3B04de82E75E015f84e94d1DE33eA1473504b",
    "userId": "100090397"
  }
}