{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x30ab58f2fc1f211e3a01cda1912dc664f9194104744a98f1a2c06eb201ae2ee9",
    "signature": "0x6635298e820ea5616b8a7957911f355fb3c5198766fc05ddb1a4c46f15ba274c5b82b0a2220680fd06fecf27e8e04e6b1f1aa4e81249636dc54ec4cf1f510c371c",
    "signer": "0x2F70DdE402b24fa0fAf5FB9c7Fc6E38a26cCE9E9",
    "userId": "121616299"
  }
}