{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "168463",
    "entityType": "User",
    "nonce": "0xb085f89bf6d461f91445eab758878b95e6a0a35959fd194db7dc7e0cd0eaf06f",
    "signature": "0x12a0366289d1b6827343866af9c266182e7061f7e49272338a68137a23d04f4a4196d8e2438e2cb35815cb88432602011e37a2b3a843c7f072142fffcf4788d81c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}