{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0x32cc40fcde5915a8c9240eb527a884a96efe0fd1a98b53ea9a324737ba393efd",
    "signature": "0xf46fe0d8badd691ebd9dbfaaa045c97843a3ae3073610dcb8ad103443a15cf8b27a74a6a88fdd89e0e4de001e2c83f99d22b2c3341d6e7dfee6892c6170b95ca1b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}