Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '51453de44aabb899dd9156347a214a8f626aaeb00bb8f7a38adfd01954785001' 
  AND token = 'CVNh0kYeJc1oC9L+ImsWY4H8fn8fPUFIRWIVmUbwNJg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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