INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '6e51c2e8a3e63457639c060841231a1d50506a9f50431c3b14da9c527af419f5', 
    'PEtKIf9TArSMfxoTLMuASgxWFp6L9MkaTku5w93H/uk=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00042

Result

int(1)