{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x862e031df5fd272bc619174ee9ab5a99e50794ebaa2f00f07af64700186a2681",
    "signature": "0x4f08f815345534b05f81126f2e10de648d42e9e53876a713a7b57ca41ad8f4947c7ef9ffd97eae64aebf898bfa9d6eafc433c545db59d253835c9d064e4bb4851b",
    "signer": "0x97770A25A869748E6f2d9A0B68eBeD32F718C0C8",
    "userId": "418931312"
  }
}