Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07382839b1f3ca5c3afb05ea9dd38a413282f2a0d45187490662a3f07b3b87f3' 
  AND token = 'IPI31Y1GctbpBCTrWzUNDM7kzz1Z4vx/8lA6xDJSSPs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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