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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'bf7f0846d5e0d3a1393c784bb5631af2ead7175ac7aca52a3a5445c68e6b5118' 
  AND token = 'PFeFCO8Bejw1LLnCrv+WD6BBkaVh7OBK7GDorWBC7RM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00134

JSON explain

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