{
  "manageEntity": {
    "action": "Update",
    "entityId": "403998674",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2031f68dd8746a2c03937b3633c6a80c23f3eb90752e9fa8b02264a9d06776d0",
    "signature": "0x7d2bc1054e30c1dbe951a7d130c3c6cab4a69b9b099a5826bd5c5176ce98131c12f2e6cfef182722ac91592eb4a7fd0255e26be951092e846a902850c1a2b4b61b",
    "signer": "0x05dFbB4a0596bb4528E30DD78a528f34e09DcAc8",
    "userId": "403998674"
  }
}