{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfe317139515ba999c2a1d0d29fb62a8bb03551f3c86e3f833ecf9340bb41eab4",
    "signature": "0x0f6e7f3641fcac208e07b597e90e1f6acc20adf560117fa4df1700ad1d524c9e2e2fbd169397100926fd054eeb1f808b7fc7862197e7f194f67ab8295861808f1b",
    "signer": "0x9A1A483b8f4450Bf43992f98248c0567cFE557B9",
    "userId": "126704903"
  }
}