{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "463202",
    "entityType": "User",
    "nonce": "0x840a3e2dff31407551075e0b7a17c22bcbe8267de8dd0d04bd1029ddccf7dba4",
    "signature": "0xf2ebe4e09a6c9f157d35194aceae79d8db3e7382af7a0ee4ef3077dfd060441a32372feaec84aa32dd1a4674bd6249e53c85a2003a18ed7a3838b43452b240131c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}