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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '690e5240472df6e606f0978afb7ca0330b35a6171e15055da712f2aa11db6863' 
  AND token = 'td0Wmjfbrbyj80s/zIZAYO1rDC2Ce8++FPoieByZA7I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}