{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13214",
    "entityType": "User",
    "nonce": "0x08a3787f7fe88b57e45c3832f7d31738551a3a9ce4349caa0b2360af7abf72b9",
    "signature": "0xa1ed6cc1a7388f36327bb5201849c60e2db8371d438f027db02a9ea6219595b0777673c5cb1487e0ab0f6a45780b29ef48af93fac5125bcb09c53d4bbaa408dc1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}