{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140587",
    "entityType": "User",
    "nonce": "0xf687c507010807cafd645d4e5391ce8981550f613a1203931369494c4c18f0a2",
    "signature": "0x7c8e487898f6afdf91a0eb6d6bda240b2e6b99bf88f31d726c349171f8c7d7aa20297437d8fa896f8047e4b610adf42389261f947cea465eac8254e367a82bf31c",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}