{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "957873025",
    "entityType": "User",
    "nonce": "0x80a3c1a6f52df99ec0b4c3cf24f547e60379fca2cd142cd22ce5cfce4b4aa17c",
    "signature": "0xf56d8442c7c3439d0dd8b7b9794868b9e018c9bd10ca2b7cf57a10dc3587c7963744fbcbb8b1b3ea050af2c4ebed7789fc5d6fe62bc654ec75ed7596d77044851b",
    "signer": "0x3D472a01Cb831ac594835ac6038A4346E2A22B94",
    "userId": "327343"
  }
}