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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7d1f90d06235d071f858825e603b22e5be9650e6bac4aefaa62fabc1a72ec4de' 
  AND token = 'HLFm136pTogLc7IIJ18oacVXFNUTnohj53/VQ3CQR/A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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