Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3181fb1cb86b15513e865b3e60ffdf38be39a03b00f39cb79fb31d315339d979' 
  AND token = 'iKcFhxk/0NkKBjIxULZGAbiccJ1JWTtzyVoVzxvhOzo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00300

JSON explain

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