{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x772c2214d7aba6a42da88d4f9ffbafd138024cb425d198a77b1cb2cdd835ede5",
    "signature": "0x082c9c5dafe641f523f1eaeee37b0088a7f4b78ffecd51b24dd5f2077bb7be157849aa9028482df1de376f4e63f31a11afbb0077be15e6235a9f85b00bd45bd81b",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}