{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "649816130",
    "entityType": "User",
    "nonce": "0x072e0e21bb28d1db7bc8dbf4d1bf1f055d5d80bb72bd513d207e3d8ed34fcf5b",
    "signature": "0x3df6f29aa67b0fc7e00b32ab8158de1c0af16e0005dd5ab055415e784d27cfee15095038da278ae6df7762fcead68a16f8d0959ace5de5f2a914403e3b02744a1c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}