{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136390",
    "entityType": "User",
    "nonce": "0xc6a727a750dc89a5fb5062ad479a41c5091004fcf5cef4159bfee475c3da1b8d",
    "signature": "0x94b20682f2386d22131d7449a12365cfb82a495a28983ec287e7f00b6dfa9ff72e9ccb3dbce3747acdfaedaf1ae0eb05362b2f03e9462d40056f2ff61c63d5581b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}