{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51879",
    "entityType": "User",
    "nonce": "0x522a1beed22569ffb6f7ad3543886c15a4df3d3ba50f8886d8e08f135408b4dd",
    "signature": "0xafbd71987baa800d519e2173126a760688e2f826dd6413a81d887603671e5e40289b7ccf1ed5f1d954c90e5d9a88e34e3fb2975a3202fb263d05ea5f71ddbaa11c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}