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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c90aa1f7c526d3702d8bc9d4b43ae9460c8ce8d5916be7d116dc952263e62ac0' 
  AND token = 'SxbcEmtxIlV2et0glx7l0X4d7iRmaHPpWFmcRGilKA4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00011

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}