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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '97d62a0656c65be5f923b5c27fbba71bd9718135720251867231e38a1b2bda95' 
  AND token = 'igmtZESap4yRvOA2mP+yNSDq/tpTet38CkbNrrz2A+g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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