{
  "manageEntity": {
    "action": "Update",
    "entityId": "294359809",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7g3yqwrbxn2m2wdkuguilpkgdln7tlp2xfqrfbnazovkjt73uq2a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2007455551},{\"type\":\"playlist\",\"playlist_id\":1005309638}]}}}",
    "nonce": "0x537a2a988bdca71c055759a15b2b79485d8aadb48de111529479d4249dc86dad",
    "signature": "0xae4942d92633e5f3d152b01173ce8cde0e4d7b2a9b725d23d7101e57b849dc966764d29cd5e8e8e0a6ee4bebdfe5f31e9dc45d87a047d9f067bbe233daf1b6f11c",
    "signer": "0x776FC9416d3338b25E1cbC297e10B7d871211673",
    "userId": "294359809"
  }
}