{
  "manageEntity": {
    "action": "Update",
    "entityId": "424530664",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieral4mvnww7jpc2mhuyvr6ekjntvryqdvztzqkylnfu24etftyxh7ia\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2056661019},{\"type\":\"playlist\",\"playlist_id\":1021394295},{\"type\":\"playlist\",\"playlist_id\":1875642526},{\"type\":\"playlist\",\"playlist_id\":1428138528}]}}}",
    "nonce": "0x13235023108586e46e98f782f85c15c3eb51f624d3292ce2a58e6c12d27eaafd",
    "signature": "0x957da1f4a55c32d3fb21d3afefe1cbdb5b4df51d82b2573bdde1cf77ddc3691d4aa9faaa6daa8969b914c8fae3b2ae8459a3f677ffbdf17917c455fea00f58261c",
    "signer": "0x862aaEDB04B251891D6F8bE698DeD7953C861b8f",
    "userId": "424530664"
  }
}