{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0853a3336abd42f04d1831ab8cab62cbff821c891632db42eca0f429650a4865",
    "signature": "0x52bd6c4963caf9974c5aab11542b5cb421d9bb7cc27cc64d07bcb364400792b13a9a716c2314a5b6cddef781971ddbd807f42646710a15f45ee862786c07ce671c",
    "signer": "0x6CF29C21c9C0b405C773f3605658C095Af4c28EF",
    "userId": "950485788"
  }
}