{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x92cfe06b08e14039b0c8327a4dfee152f57465c6bf79297fc249fe075f6ba78e",
    "signature": "0xc38a4a7261dcbb5acc5f643bbb8b062a86d13a42a53a008d5eb05995dcb56f6d5731525ac35a45e272ca5a919557aab799a0610ee9c493de59331873e26e94b21b",
    "signer": "0x25E3C51f72Fb7d4734725DC533199253F7dc7801",
    "userId": "619339589"
  }
}