{
  "manageEntity": {
    "action": "Update",
    "entityId": "410176920",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6221532333915533e3612478baf2178e6a1d84655a8f5884a754cd37df4ee608",
    "signature": "0x9d3d94aa1f23b07924191a393c058f1f762b8752fdd5046f1369cc63824f1a5419b977f3736f9c3dd5b2699312cb47aef014b001c5796e08229e3eac05f34b701b",
    "signer": "0xC2cA9dBeB7B4D997Dd2Ac0fF9599A3D25D00d046",
    "userId": "410176920"
  }
}