{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1450501",
    "entityType": "User",
    "nonce": "0x033d9a78c094fbb550b4df2ba18a7a31826b5347368a1e976cb7f02709e1ea14",
    "signature": "0x202569ee596e2f6cb31a53ce094aeececcbddf5525671d19b25e78b5721bc4c401a54d52fcb83c0598dd0bd8c4612300ac038f00d43c5fe9c29350102837c1db1b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}