{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "192336674",
    "entityType": "User",
    "nonce": "0x119be21cfa836108d4e0ab63102a8f0471ac9581af64c64f4a752bfc06065668",
    "signature": "0xf0cdfe4b089d686586d00a80cf9eb605e024aeb584831a0ee225931a7f6d60ca690346b912bbd96195ce486da8e1b58f02b726717ceaf3b203960a2f3ed09c3c1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}