{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301205",
    "entityType": "User",
    "nonce": "0x38227d640101059452f4f7f10156f44f44a098ddb64be685de1ee3b5fd792c49",
    "signature": "0x028e89b96cadc77616e219bc73c831f40c26dd188e787e4afb88fdbcf8c1c2455b978b672c3d20fb91a6d1d9ca350539591885dcda0d75ce2fc58a6a4a65c6b71b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}