{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x605c260b4f5b71b90f88f3bcf7ae3e26b730262f8843eb1c664bb1bd6ed73d5a",
    "signature": "0x4ee05ef930df8c9b902aad9e32cc3ab8046bf2cbc586e325506a048d07d99207271813ef51eab864436b522b50830ce9f3a7974f92de382d070e5acec839b2ac1c",
    "signer": "0x040E807b2C1CDA9AcE42451B1ca1326dc84cE86D",
    "userId": "813889003"
  }
}