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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06317dcf98eea9070d136f2419f2a6b73fd1d29eea2b88716197874c76e9f07a' 
  AND token = 'TafRcgky3kiaVSCKP43uaA7eiibp/Atecv2F9PgXUb8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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