{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x5430f79a6352d4cb1a49b13ab9b2b0ef267cd7674883aec77a35d15391741c49",
    "signature": "0x869a2ce57016ef532c578dda66a2ee50a9937ff2079e4fe13eeee01abeb0d42b35d04bc278389484866492297269d2d70a623761fc168a60dc00968afa6e0f771c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}