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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ed44b377e8688a44c52f13c0ee30fa000c5072f6e090b54bcadaacf7f53f13dd' 
  AND token = '5GAdldNWePpxiDqS8v05rGoEwmrwAWAVoig2kZsCe8c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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