{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "823",
    "entityType": "User",
    "nonce": "0x88008fbc141b3c5a3c04162f71fb651d745d16b2b3ad42e78ceddbbc4fa2367c",
    "signature": "0x711e137d30e0593ff888ceaec5ab7f2feeb5036f2d0c0bdf2b4c1f01abb805f73397ffc08eed0a6ee4638940acb3b1bc9229e85c2e71cb1abb1605a7decc8ba21c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}