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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '8222dd06ff9931298a4dd45c3513ef47a8999e26befc606ea70063c011c33fea' 
  AND token = 'uLtfEcpKSwiIx4xx+dRFAe45DFo9JzbPq8B7CNfZSlQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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