{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1917560",
    "entityType": "User",
    "nonce": "0x78beb3a800dba8efc1d8e3a0397ab88270fa11aea7cc306f7f3921b4696cadc0",
    "signature": "0x7c9f772409372f62b13cece4ac0a512b988e2017f3301e0665eed940806daa43669b05ffcf8c3f0e484561f75ae9e959682c7345d44081405ab833881f1cc9421b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}