{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55851",
    "entityType": "User",
    "nonce": "0xf7677c8a4ff0de9bd609c20b1ceca736dd64de74bbd880f63c9f6e09f8f8de93",
    "signature": "0xec61ac7c04159e8e1f57ca79790f8fcffa86e9e1bd788b3fa2e59375e0e02d845386805539306feab25ce1051cea690a664c5b6919dd6eb25a4569ef1292ea131b",
    "signer": "0x8097f7562D3D2F9cbdBA391c45c0D376E438625d",
    "userId": "51978829"
  }
}