{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "208103",
    "entityType": "User",
    "nonce": "0x35fda42d410102464bac9f00117f74af533fc6709b9faedc068772b1aaabff6d",
    "signature": "0x012cb8dd21afb7f7c1b12baa7641bc40e138ae1c2582af3c167eb505ead25a5a028948bcd91e3ce95fb6bff84e68977d015226c6cdaa9dfadd392f53819fca581b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}