{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x56aba77577fe1eabbfde55aaf542653e15cc1d0e9f997bf89b08b6dc2d4e27a5",
    "signature": "0xd47815057d4ba3707be2dc9aeb1749ff8391203c295cee7182e50915a5a4319f09b543feac67019281dfca8f295dc9e287d0637f7f5d592cc63a8b4eef9b30bf1b",
    "signer": "0x70b323e80C03A8f0447bb3f5A265CCC435e711d1",
    "userId": "916294152"
  }
}