Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ea5b09a8715c7e14be05e4981786bfea328a2f30f372e99069511f6bbd098095' 
  AND token = '+7Aim4JrlAckiI7GONCckBykIclHzkKaq6PvziPdBAQ=' 
  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"
    }
  }
}