{
  "manageEntity": {
    "action": "Update",
    "entityId": "597089050",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x03a4508076131b8373b695c4f7705d532635f06035f46ec894ab90be418c23ac",
    "signature": "0x8c166b40ba1961f9b9fd3e6c20aa5a36b16705cdd13fd34d6f714b79ce38058666a95f4d6b0747a1c2320a0472c15bba25967f823ff0e403bb66731942ceb79c1b",
    "signer": "0x23fe9bd3ec62BB3a6D5EEAae9284f507f9bE8280",
    "userId": "597089050"
  }
}