{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354535",
    "entityType": "User",
    "nonce": "0x355a8c108e8ce2dc534f518c84bc414d5a1d95e52acbf3e458fc051a59d20b6d",
    "signature": "0xbc85ac4499911ab12bf918014c9a775b1c3374bec7fad9a29abc53019b575cab79eb00f05cfac4413ea2b653877132331370ccfcfed818089201a4ab20d961ed1b",
    "signer": "0x6DFC9b2081230853d5F4203e1e3232ed22612526",
    "userId": "535575"
  }
}