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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '130654cbad97d94249e49d88450141ca01dba7da58f3aea9570c20a4ecd39b0c' 
  AND token = '12BfFiJ8NoRPFVaPJEkkL7Mlf+ogrl6JF1NMm6LSrLY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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