{
  "manageEntity": {
    "action": "Update",
    "entityId": "969179620",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraam7d5cizhapehas5srwob5xtoimljnwsqspw4faoyf6dqco4ymaq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1979234519}]}}}",
    "nonce": "0xf308867c5802f6cc20d0fd576e170471e6b7596685a266e76038009febdb5a90",
    "signature": "0x6dd6d888ed5e646451681ca41d72828f94ecb84a7384ba71d9fd9ffdf9638e211126cb24b4c12adbaf31909e5b269b9ff21bd8c52e8a9b270f0e7d86f27416b51b",
    "signer": "0xD3aaf26adEFB3a5342559Af184A2B1A60d85d48c",
    "userId": "969179620"
  }
}