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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '38cba634b3f58abfbf41e0381419a83e551b886b114f3fb81df69e35afd3cedd' 
  AND token = 'Lxiw5A1RIKy/ygtuU4SKRh50ln0uyu8HfFR+XdWyhbg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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