{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2051",
    "entityType": "User",
    "nonce": "0x411c0da16ddbfdb20bc8da49afc2bafc33e0ad908a03783692ae4457498c767d",
    "signature": "0xab607983e86c8e104a81697825ef473390d044a89650cb4be068b218701084b24c9bd627e70ebac11e8f607c98c9a2b92a5e30afb03fb843a5a22b8261646ff51c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}