{
  "manageEntity": {
    "action": "Update",
    "entityId": "648743045",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierahl6h7dxvzgp6qlmb5tfi4e3aae33y6xzjhauscznzozhx4vkbsyq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1862648089},{\"type\":\"playlist\",\"playlist_id\":535391917}]}}}",
    "nonce": "0xd06795f8698c5e2ddf2c8d4a2580bcf42be895aca1ebd2a9fecfdca043b438cd",
    "signature": "0x64b54ce4507f388e34184c4c4b9aa42a290cfd2bc23398c0859777cb70a4de5356b11673999f702f0ecfc15e96551960ff74a25532e6bd761251fdc1bd701d971b",
    "signer": "0xCaE1ee7dc4DB493ceab857fd89C09fA305C4c5d4",
    "userId": "648743045"
  }
}