{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "842214964",
    "entityType": "User",
    "nonce": "0x74dc7f816cb7fa23af9f65ef9c383f748960778d99cc6d865060338d17171b14",
    "signature": "0xa638922822af4bbf0735e863b992e4eab4f627435bb9cbf29c4c72d18198ef20679122373c9f02cd3a4b6fb73f0eff771a5bb8bcd236c02c6d37af9e327e0ca31c",
    "signer": "0x1D0c500EC847246923045cB0a285242A93723f30",
    "userId": "302385956"
  }
}