{
  "manageEntity": {
    "action": "Update",
    "entityId": "697544461",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieramdpu4gj3fesmtgjzevfmjbbmidz3oskeikqqwnboha22yf7g7yzq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":815239274},{\"type\":\"playlist\",\"playlist_id\":1247812580},{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2005171077}]}}}",
    "nonce": "0x09f0d121cbf5a99fae9a724015645b0ce6bb507ecf70fef223fa7970d2911793",
    "signature": "0xab5b013b7b56a8dcb443c56efd22268e2bc6081252475bb6cb0159dcb9bd62e9338a66b14d3da02803e8b530dd50d7ca5533a1f732f6dc291c8841b4e09ad1b41b",
    "signer": "0xEB437c4B0164273356FE14ccBf1dc550Fa6D1E03",
    "userId": "697544461"
  }
}