{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "122654",
    "entityType": "User",
    "nonce": "0xf00de94504645256cdc291561a8dba1b341043513d47d0693dd5e8fec81d38bd",
    "signature": "0x8ee4eab9b0c4d21ba764bcf52f1f7269abd205205ef7fa4bb185a96260f3c374757493cd065d922824ba159205b29dcf58603ead71821a06e5315ca49b13e0201b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}