{
  "manageEntity": {
    "action": "Update",
    "entityId": "834540087",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2d02414bf852269c77f8bb8bc6695a6d4be6ba4400cce54226cfdda12a6aeaba",
    "signature": "0x0eb107577a42c45a4d31a987d46962bf23badfaf9b800dc214166e0b35c0035e70404bb1667bfc1b2ca548e6e76f9739efbeec92dde7a111ec318b259407812d1b",
    "signer": "0xF0CaA5581Af6ee80150b5aA4643d1069EC176dB6",
    "userId": "834540087"
  }
}