{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "776655850",
    "entityType": "User",
    "nonce": "0x9d1533ba66560f6bf1dd18c752de8db1788deef0bb5939d86f57614653077216",
    "signature": "0x0d2fb6c1c360c9c036e1b0452e87f2305e32402345e1098c6f1f64c9fe9d9d862b1f9df2d4e3c6568e04f98045f23b89e0e6e4957fe881dd3c13fdbd90f5c4be1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}