{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0xe9ebdf194ec1984153be76b0bdab7d1d6a8b86c467268ac05583aa60f1ce4a71",
    "signature": "0x1d599e9afbdac4afd7e9c58546851a6c36a7c2f1338945dbd9957f4eb0ccf4585241624a00cc30e1cd1fdec14bf0f5612fb556a68a274bbe85ff1211099a4df51c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}