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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0fceabcfb6b9f5c905065aa3d61cb9a09eb4a2e467b381319e6d107d97273ddb' 
  AND token = 'e/uUILRYkbHg0dbI2L3q/jP5IAEA0HvOECiae40sv3s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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