{
  "manageEntity": {
    "action": "Update",
    "entityId": "17766667",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x496c58d9753530804d02cb7757f154833f319e70fb334f63924387b617405999",
    "signature": "0xa66709ecc6159a7153061770eaafb9dff11210ad82d244690bf91915271b8c164145a5b2bf8f1d64882d6d29e63a811407be44dd5cd6611c3b0f95b8299e533b1c",
    "signer": "0x1EeF7f4505C388ca4a4B9A8fC01FcFa7c805D3c5",
    "userId": "17766667"
  }
}