{
  "manageEntity": {
    "action": "Update",
    "entityId": "875266680",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdca3a09f6b08eed9169f329c1249c701453278c7a6a9f44260ba8a8ed3f83a1a",
    "signature": "0xf3254a7ea28614e61824d2abc72dc6fe0595504f9c1730044e5d0507be3097ef7c0c41bf580d998ed49ede262ce977c4be17fd70ea08280a2ec978f392dbf8ab1c",
    "signer": "0x1Bd1aB857bd91ca351Cc91d8dCe3644C0B43B6CF",
    "userId": "875266680"
  }
}