{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396132",
    "entityType": "User",
    "nonce": "0x523fefc9f9a220e587785eb33975f0e2f48dde46fa1fb9feb9d75194e4b6dfb4",
    "signature": "0xba2b1845dc299243a9f8e8cc57a5b9d59849aa7e9d1e6455b2eded7d79007ba662d51b770ca5e1677c5ab2ecc4dc064103db6f7db35935e0ded88a7eac5cbaf01c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}