{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328810",
    "entityType": "User",
    "nonce": "0x82a858b36ffd87ed57988ad2a0a611d3ed8c47d1c5407df65c386f092eab5b48",
    "signature": "0x3fde0fb5a97c6989d7ea02a28025859d2fe961fd4d72528ea2f5f5a806127ac30330238f9ad967432d11f0b119607062ff73a3754242561c143fddb41e395aa91c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}