{
  "manageEntity": {
    "action": "Update",
    "entityId": "308558165",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierahywsqurbzyb2gmcirtmdsisqqnfkmobjra6sxpxmqvs3ynrwobka\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2000619365},{\"type\":\"playlist\",\"playlist_id\":1877951072}]}}}",
    "nonce": "0xf71f1acbeb25711ae1dfa252537bf12c332c9c6eacaa5fe50a10df39fc186892",
    "signature": "0x67ff877acd928e2be50a451627704f67d59f515a10a66c9096b6f1d676d3a7ef064852a3ee6ea9973ae71c24e04e4e115bfe11b62f77caa79478ab33ddd0a1091c",
    "signer": "0xa85dce385eaA369F6073e0b6e242561d0870425C",
    "userId": "308558165"
  }
}