Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5fda02008c6b04f7086cdef49874e3be14f2581f357ffda28ed721b1e382c924' 
  AND token = '5EXrnai0Gtl0kq6o/zoHyAw3CO/oikieDMbZPNn5QwI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}