{
  "manageEntity": {
    "action": "Update",
    "entityId": "200282413",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd5f269cec151dbe44f4a99ccd925d6fea950dd2d1e5f3108f09d2c9d6958148c",
    "signature": "0x01c26d214862e1652af0b12017432db8b5742ba764e32f051988da5becf096f67450f4ed2259d26e33cc7908d7f374c2c02a4a754df29f410feab3ca77279ad01c",
    "signer": "0x68a290bdF97c9a69319e6C1Aa0E897f7Af453cED",
    "userId": "200282413"
  }
}