{
  "manageEntity": {
    "action": "Update",
    "entityId": "909822926",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierahtzjcxzjdcyclaec5t4ande3fryqifz5nk3foweyefqkvtuhtixa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1126518777},{\"type\":\"playlist\",\"playlist_id\":118958}]}}}",
    "nonce": "0xeb57288093e03a08488d65b752c7694077fec898c0051145a2d2c05d3ff5e8d6",
    "signature": "0x2411f21959067f4ed186708488b6a070e0addc3ea9fb158056e5002b299147ac0592a8ade05a55d5f1c70905bb590273e6ce3b1c5123bc594bd713cfc5b81f8c1c",
    "signer": "0x7315e02d352D97bee742C3B3D87F3277D05bA410",
    "userId": "909822926"
  }
}