{
  "manageEntity": {
    "action": "Update",
    "entityId": "995280810",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9a1756f340034bb14a57747a2210fda3e2651ec653051d916d2ebe385cae1c21",
    "signature": "0x1374bd379e8d3acbf3dff841d5c2512eef0e5c2309a91ce9051fc97cb007e12939b3634d4865f5a273ad1739b9f61846495e64334566966eefeef5df2f8f1d751b",
    "signer": "0xe3c64b1f5E7e0Da588E291cF14186fA7EFa5f2E2",
    "userId": "995280810"
  }
}