{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394995",
    "entityType": "User",
    "nonce": "0xc11ae134f0c507cce14465a56a61104d4e73b374923789906d96825574ecdf84",
    "signature": "0xcb9e34d20788b3b499d61730bb529b275671558099e0e519f4e1face785e3f5a10a889eed81842b54c8956a06930dcb559e021a6f36459bcac4ed2eb54ef28411c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}