{
  "manageEntity": {
    "action": "Update",
    "entityId": "85103737",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2c300e5ff15a0097efb41db5e938a3749edea602625766b0ac5c7052c7928fb7",
    "signature": "0xd597180c33eeed2a2369aadf9db9a4449a684061c5001f6e77ea4d2b30d1758d116c580f2fa391e98bb27d6d8280a2c99ffb15fb2e7bf73e9d2d50ff320121021c",
    "signer": "0x1d312d3D5E7C827F51a3E927996298A3529180d1",
    "userId": "85103737"
  }
}