{
  "manageEntity": {
    "action": "Update",
    "entityId": "457719352",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierarzad3gbyvqeerxibh5xp3ctr3cf4stin7imtpo63co7yf7p7jvoq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1371825632},{\"type\":\"playlist\",\"playlist_id\":1067571049},{\"type\":\"playlist\",\"playlist_id\":1491429519}]}}}",
    "nonce": "0xa019fedd4ac6856b10ebb33ad0d34e1dd2aeab822f8b6ce6ccfb20a83e1dc08b",
    "signature": "0x6f855ae43a7ba20b4e452b87b147602515b1f04784c4c9b44190ac255fa9f72e6b38e5d87d54b2325149860bcf3166b3e1afa8eef1161a2effac07a5cf49cbbb1b",
    "signer": "0xeaaDaeA3d82533Ad0D1BF4B88fd03EdE01320868",
    "userId": "457719352"
  }
}