Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5e861a0912aeba6fba075dce7a8917e9dd0e76af3f5aea31dff71cadc8fbb996' 
  AND token = 'svmRART3wvxkFRDXBUG3Md5ae5JF5PsE1njq24OkDPg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00080

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}