{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9a87e2d398788fa33bfe7e3313ef95db2a3b0cfad6beba489faaa4998979623a",
    "signature": "0xae136dd344075bf84cc56483d37c1754007c971b7129d0bb14d07bb97d3af2e50d2e91876555f49a48ed7ea9207b8bb15624b5fcc7861f9e9b98279d6e4bf1ca1b",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}