{
  "manageEntity": {
    "action": "Update",
    "entityId": "779919026",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb18f2a9ada0c40eddfcdcf46f3cf4d381e79819ecdc30127e39a57e103476adb",
    "signature": "0x564fa0c16393fed4e176e4e36067b79ca2a779f65c6314c2de91a599e7f1de5d1fc7ef27782d790937aa3932c1abcd8b456251c6047b200b5c66af5ed2a89ae91b",
    "signer": "0xa8EA73F2D8da740dEE8A3D09Fd646f763dbb3AD0",
    "userId": "779919026"
  }
}