{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42641",
    "entityType": "User",
    "nonce": "0x167fcdb0ac58153837a38f0441f8ec0861b92c801d9f254c476bcb8b59980511",
    "signature": "0xa8c85536bc724be064ddf3d652a9532941c1d017f347616c306b18ed72272e262f3fe4e12f44530a621eafd26efe3427f28f4fa015c426eaf02259eefef589611b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}