{
  "manageEntity": {
    "action": "Update",
    "entityId": "916251497",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera6bnemowkwnnjkwtxxl4a3phzg42bbnzhleufeolul6yrbgnjyiaq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1203846698}]}}}",
    "nonce": "0xb2853abfa22fd05dfecc4402ddd21a5aacf97af39647236aff781f470e69bd66",
    "signature": "0xd8d4ac0aa2faf0decdadbddf278288ef21abd2b439f5f675e5b25c95ba8ded4808a28081a53a65ced83515d223bede8f9d462dfdc0819db572253b7ac80ee97f1c",
    "signer": "0x2a504b213c236DF8aBF36c36EEe6256f57547e02",
    "userId": "916251497"
  }
}