{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaf7e5b2c01e8888f254f422da9f190c2a3d2a1989368dcda6b36e6a80f8966a9",
    "signature": "0xe2d0fd6fc7958258277b7af7069d95a7cb20a8e7e02133e471a7074a800798840a021d394f088f3e685cc852c1184cee298ae03a1de93e2ce14b71e0ae27aaf01b",
    "signer": "0xb1Bc6A9aa24466F3B1425EFA79e0A409EC2bAbcd",
    "userId": "580124270"
  }
}