{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x123759de8a18ff0b75cdba1a9358a2e6247fdb737ff5e98615fc40356c08197d",
    "signature": "0x7151fd5342626298b2a070615534d79c3944f72bd8c0314be97f27a7fb608c797ed171b4eff8e86d4e443d62e02ed50facb49b756d5b71f9d60d0e4bcf14ed401c",
    "signer": "0xb35Fb002cAAAfE8e5ef84D75E5836be1218a343d",
    "userId": "204966919"
  }
}