{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16742",
    "entityType": "User",
    "nonce": "0x0484ea958c07b1409943420ae97666d5bd628069fab44f169bd601c4ee81ff7c",
    "signature": "0xc08708fe9701fdc1fad14f42c964a85dd3145ee94091b2beb3adb68006c7bc11285f3caebf0a46fc70ff806ed46b63ae8f9d1951625ca4a7f54f997126d52dea1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}