{
  "manageEntity": {
    "action": "Update",
    "entityId": "736937284",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb2879f0bfa63b437b1013d70fe1eda5bef226c6fea7d4cb578276a447558a669",
    "signature": "0x16c198174f1ce12dc5f05ec546947c1fdd08634f8395756dc1a3a6d1f9da7aad3cc67ad296ab58a15917ed48a0950bc1120c3474714a38a714109733bed0627f1c",
    "signer": "0xbF77B5D53Bb50fC77c2B56253239CC16Fdcb558c",
    "userId": "736937284"
  }
}