{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "715",
    "entityType": "User",
    "nonce": "0x23c81bd20939dae911640a8952a760b7ac496a500a0f1da6a15e130dac93773e",
    "signature": "0xf9e4767a14e85e7b5d26e07d9f7263b53f2b6a69a48ed146b38fcc19cf663b19442b28936ecd3fccb35b60663212dcb511ab729e894c13b1af8e17fd2db440e41b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}