{
  "manageEntity": {
    "action": "Update",
    "entityId": "657151064",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierade747dzdtrgy6gbj7reaewqfgeggzbapnv2p3p6ic5etizmzowoa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":671341078}]}}}",
    "nonce": "0x21447c8826c304cc1f10ec2ec7297fbc8762036ba379a366c9895694effd311b",
    "signature": "0xa3e11ce2ba1f85154553c7a136d5fd7d40f3c13acc09a3d66d952f406b864f4d0c26151758bb23f2b585139c8968f77c85b4755999216dfb816ef68a1391d7c01b",
    "signer": "0xf24a43ea13664C8b854750a61A8857edE36542fF",
    "userId": "657151064"
  }
}