{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "971292289",
    "entityType": "User",
    "nonce": "0xc2d667b1318d4ce3bf9b6f1db96cce54e96958c2d260383c790c20e4836fa389",
    "signature": "0xd11926b9ffd3333f4833ace21474628ea36a1245f47dd82dd4a3a291277a3f1874817a3352d1267d931f4e62c0aa9503c58ab143d08b77bbf449508497aab9f61c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}