{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "778838490",
    "entityType": "User",
    "nonce": "0x03530911591a59f54950c95ef1c9b80f32ceabc56fd41c6bf1cb425cbb5713fc",
    "signature": "0xbcc20a8ee4508edf230bee007edccde339c961db1b63272ecfcf0d117523654545522d8b8f2aa35b05c22b9fead8c68c52d46688af6abd6a6189449b84b9e03a1c",
    "signer": "0x5e6d01F8B70091388F9Fc78aCe897341e3696c0f",
    "userId": "335869800"
  }
}