{
  "manageEntity": {
    "action": "Update",
    "entityId": "720251199",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierad4wynxj7mqqtxhokseikjqcyuib444gqm6lkdzimj7zkgrix3agq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":334502170},{\"type\":\"playlist\",\"playlist_id\":3542968},{\"type\":\"playlist\",\"playlist_id\":399979551},{\"type\":\"playlist\",\"playlist_id\":1408275875},{\"type\":\"playlist\",\"playlist_id\":954706252}]}}}",
    "nonce": "0x78b022a3ce44aad9919d281a196731583c63ae7e72ec8bbe41ae8bfc56e667b4",
    "signature": "0xc85693dfc9187ded231753fb725b73143464a9d95a99a11c823b7bf834f54b097e28a5bd4b5abcdac80a5dcfecb452be712cba4f9950b390d5334d7373d52f6a1b",
    "signer": "0x3504A096a184AdFd1ed71f0281661a5d34a1f2A6",
    "userId": "720251199"
  }
}