{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "679084269",
    "entityType": "User",
    "nonce": "0x97a410cbc7d7b595e63ccaacfec65a5b1b039898e74571a867454ef3e65b0ce9",
    "signature": "0xd416028693c5bc7784ccae2dcd705a328b1472e1f6cc969240a520993b8b68661dd8e70166b77332a4c783045f0075412c98f07c8d9c75099e7d215005fab5481c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}