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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9a5f1a6c98ad6180156ed99d90e9d0d56d78babab8ea2fd747a6949d0d7f4537' 
  AND token = 'EZaJBtWTl3IYWElhDcnxYqYFuJS4vfEwEMk4Agxktlg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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