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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'b86f4758ac985b9a5077817e11ff4b70e32ace7e2b53ca8d5775dbc91c583d0f' 
  AND token = '1Z557PLxkKlgK0dLx9/QPNzzADBsVf228eGcMQiBZJk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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