{
  "manageEntity": {
    "action": "Update",
    "entityId": "156660389",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieray2btkjdlm6wyx7irpbqmw32hzijrg4vmbc63fhd3rdqpjcxobbtq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":220536330},{\"type\":\"playlist\",\"playlist_id\":66399984},{\"type\":\"playlist\",\"playlist_id\":399997806}]}}}",
    "nonce": "0x95503d92427e368ca76b42d91f938dba00e342f3b2728a3e9c2d3e7961dd9f33",
    "signature": "0x855e38d89099376a18da38ee98aaccefd49b3a2f37df45091a3d9b71065445875ec11093d0d056f940526fff1417f7e11132f4dcc6c7154af22d794935448f8a1c",
    "signer": "0xA057bBa0eb386F1B2D4740a96749971CDF62f66B",
    "userId": "156660389"
  }
}