{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9187c0d9740ecb3f02bfdfe2c7a18cf904a8396f9b01dbd16559eccfe8a99c1a",
    "signature": "0x7b7758bf00cba1898b41a4ca7a05de06b5f20540f89e70fb3fe24176df995eed2e7c964c8499f4af67d0bb50c75a5f79c0fa4862a122543b61c26b184bdda6071c",
    "signer": "0x1B42048E0256C71956084AEC06ff62eC67297cE1",
    "userId": "930109695"
  }
}