Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '109f3b06495c78d7759ccb35ba1cb0d9d67d15155ece23ad676accd8ff8094e7' 
  AND token = 't3/fE3cwaXUPvX0C8xhLHzsgFPB+DUbUCCsbBcuRuR4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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