Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0b0d964ab20905aeeb3bd440bc016ed1f3e5c7f08ef51c093a7351e534241d66' 
  AND token = 'gcSxtQuL2K46m8KjFU7qU4Wl0nNgknvn1N8mfWBBXxk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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