{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5d05145f9a6d32dd2d77f13580e3d3e9e0af83f6af804a01d893d21367a0ac05",
    "signature": "0xcc4fa55c0481e5567625cf2ea8c19eab973b391c24cc1d5180e0c538fbd8ddab2df6a1ed258f6efd71bf7fcec03a845dcb636e6749522623bf061090b9a8215a1b",
    "signer": "0x44a32Dd48D0764881cD325679f746933341d48E1",
    "userId": "393011624"
  }
}