Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a355c36dd5eaebc9524f1dc80fef6affe417a1c230af78918263ee7f597e1816' 
  AND token = 'h1fUxll7DP5MWI37ScmWa0kv2ce+Aqg419ikDAcpOfg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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