{
  "manageEntity": {
    "action": "Update",
    "entityId": "630392492",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x43c307c2e85842103159e4a6512dc6556785bb3d8d2217593698d4d0998d01b4",
    "signature": "0xf34cee91648a735802b71df3dd1b613fc5de960fc5e2b29a959df5024994b0814f567824d64385b4cc9c9f58fc2e03539bdfe0f0cbacaabedd94838b61f6e0881b",
    "signer": "0x7187121202662Df9cA95764a23676Fc193636F53",
    "userId": "630392492"
  }
}