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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c1043a82f482a1eed402c27f548d0c98733fcbe494e6bda28490ffa53bb2bdaf' 
  AND token = 'pnTW1H7vn0DNER/SBgA2U6ZckIqd9N9kCWyD3mgpYvs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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