{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313260",
    "entityType": "User",
    "nonce": "0xb7439c85b124bb10d4776bda9bfda7247832ad2b70ec69b5f40f0eaa04136e9a",
    "signature": "0x8ba27d0e71a72c4924e4cc7caa60486f730cdc78831ff5745c8cdacaaa45bc412e9d43275badc9808a2a2a60e76d5453ca6b067fadb3a5cc9618495a5fe21d3a1c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}