{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "143760",
    "entityType": "User",
    "nonce": "0x01d153e7c31bdd550a1b90b0564069a6065ec76e4f8f5554a785404cd7d77e0c",
    "signature": "0x5b5ecea6ffd41dc0e110d6a8908097b3859ac451b73cad7f1b3856850450257238d5d3ad7756a48e2c3efd8559742d1b6acb41f41507017e4d3cf07db8f6e4b21c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}