{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x0e2f978d13fe07dd3d0b64679682fe95ad4a5494193dfd1156fa8e6516275198",
    "signature": "0xcf5e1ef45dc5b66324500c940c66217699e6e71096899bd772e578e77482bce83de3e4d4435d779f0fb8dfc39a381a8443684da8566d382f9d61cf52544138281c",
    "signer": "0x9acF8CBE8f2B0d51e756C58D6d1f946A8757602F",
    "userId": "428941685"
  }
}