{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x02f57cbb65aaef23cfbe5f388bb1fa8f23b4618f746f81f6cd22befdb04020c1",
    "signature": "0x8fd0dc2c125cd91a2ecec67922081d6df365dad44d3f762fa834d1f2a4ba03466070d59b21d0d9ff901c0c0b139f634f25b3b9c59368ab6bd2a944f61e1053c41b",
    "signer": "0x334c1E156039f843FC1FC4B64FBc58136cE8414a",
    "userId": "973129552"
  }
}