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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2e2a2ec24565f0263bf7092ce5c6ce0dce8299e9c562e210ba2684e301ae8392' 
  AND token = 'QmXNm/CQTsmtL+cU3eKIpO2okwPIS0plb+1Txb1pEEA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00061

JSON explain

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