Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ea13e9e35f104196823e5cd96cdd794b2f9ef7988a914d9d0793956edea3e686' 
  AND token = 'Li3aSKOSkQxDX10/B7M2VSocidZW+2uuPabHxArapsw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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