{
  "manageEntity": {
    "action": "Update",
    "entityId": "55500",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraauzghs6v6ldmctwccn2vcf7ymnvcpev2if7ruuy3dyfspsynmtwa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1795117483}]}}}",
    "nonce": "0x62523a86e025f54c03a7a5fdddba9557626daa40fe7a797bff289cb42759f0b7",
    "signature": "0x524a77f7a2a6d3de4d2bd9f1e52678af2b099324ed822f5638067b14db1f95f127b3fd164de473d72956be0e9834e48745d89e8cc57d4a91fd55944f5fa48f0d1b",
    "signer": "0x2c20538dC7785CD3b403dE74b4C24b9364f57A30",
    "userId": "55500"
  }
}