{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc05d2a5907f5441ed8c50d54d3e23bfa666829ea72eb4258a47672f65056e415",
    "signature": "0x535e3622322b1ae1e5aebbf1bc2fb3673acd16222fa216cd94698d63c07d321e35c444a5a3bd0cab97dd64d6b397025a11b9e716108ee73b3d66a52212f7590d1c",
    "signer": "0xCA34537176e273Efc43776B70B5c70CdD5baE067",
    "userId": "403911835"
  }
}