{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "940916831",
    "entityType": "User",
    "nonce": "0x27b583564461b3898cb3ca12d69ef4877b9ac1b22ba52a086b629dce58935510",
    "signature": "0x51f197e3cb7db2f2446eb6aaa35b1701e6a99e3481b10aa80d3fd523803c545809ad4562b9bc410af295a344513e8a655b2a6953bf7fe74f4a412c9ac4bb95bf1c",
    "signer": "0x214E702bb627b4D95CA67472f69e5e4291dA4B72",
    "userId": "284269075"
  }
}