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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7722e6bb1ee8959fc8c58f600ef5f03916616ae5a7a13bbd25bc6b8d94989162' 
  AND token = '06wiOm7DdTSnbQuM3JK1zZtexoS/OE41RM/hvUqXU7g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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