{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100218",
    "entityType": "User",
    "nonce": "0x310d2bdbfea5c14b58772209b6c4ae4f7826fa8edc01b29ef68e4b812edc4478",
    "signature": "0x01b2e94b11c3c1e4d2724f567c822e261fb64a063ee7d1addb6b36144141fe5862e6b09a312154d0e60da8fd595259e5dd115a6c5245ce90f2ec6b864f8954571b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}