{
  "manageEntity": {
    "action": "Update",
    "entityId": "370091516",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraqfakjzblhma73y22bexs5t637fvmifvjhv4eb6flmxiqyr7ufk6a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":487744262},{\"type\":\"playlist\",\"playlist_id\":1420596467}]}}}",
    "nonce": "0x276f217e3cbdb300957c77ad924f0fd0b914da4fcd07637cbf4db016bd9d3913",
    "signature": "0x390cfbdee3ed024baa77c46c10abb1f0713f2641bdfc72588bafefc176589b2b1fc784c652c37df7629e9ca37b06703b2b52e7ed5290837b3ee722030b7364e01b",
    "signer": "0x15B9643abE09bd37C52a5BD1dCF938B05b06cBFB",
    "userId": "370091516"
  }
}