{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200565",
    "entityType": "User",
    "nonce": "0x3e41c8f836a2ede04d0ce0ce520baa2fe78f91834321d9774246ecbe1e65aa6b",
    "signature": "0xac94bdb667be27d3f025f6311c47b8e20d761c741c7723c6c67b1b94e80026e23193a92649e63495d225f9f79dcb1e89026d25e3f07b9e12b89600ffdc8a1c711c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}