{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "347139808",
    "entityType": "User",
    "nonce": "0x262ddda88297c6613bc93e825700c40412fd766b37866ffceb2aa171fc074bf3",
    "signature": "0x19d71030b0c90d7627667ce8516043ea637148973d099f5cd1780462a46d00ed13f1331dfb49e0065e172f47098a7d9078ad514bcadab01b2105bd9d945429d81b",
    "signer": "0x721f076D6fdC57634d612324093cA69B47866867",
    "userId": "303348966"
  }
}