{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328801342",
    "entityType": "User",
    "nonce": "0xa876c757a78cf7bb5cd958a55eda6044e7f0f7fa817ddf75b247aa88b2249b24",
    "signature": "0xaf0a8c133228b2147286853e52848031bd78bd7c7923aa567b31eb6f35804ef7371c14e51eaaf16229cb0e1c05e5e4db47b1a9b83f6853a8419c71618d661a341c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}