Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bcb2c551f95482a90b1e1ca521a64299ca20b46f77115ef1e1dc6a7c7aad17e5' 
  AND token = 'dVpdIU7RZFBEpFbm5RmTThEFBWdw4fhvC2bh0QDVav0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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