{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xf031e5d616052aa155f7a9613938b213bf9c2dee43594cb68a3abc2137612dff",
    "signature": "0x50c6e8f2002d29a5f6ca5d125178bb0496b9af1faa0c974bfecd87d5fe2b25477208e3f8caf02e6a2ced05a2f6b99e3127da9dd188e9fc84fb2e41ca9f82b4531b",
    "signer": "0xaB3cb188f1f007f3a3Ed10BDd1eF15345eDDE18C",
    "userId": "279192109"
  }
}