{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "412109420",
    "entityType": "User",
    "nonce": "0x3cf2067a704e79729e098ebf74502ce55428033aca10a12f5e82ec30884ff868",
    "signature": "0xca9f2c94fb4252376345a28bc16c72a9bd17ba4c5ae6534ef9cc0c5cf2b14a195988bf38efa5372d0037ee0ee028dc237910a7892522798e6fdaedb2e99664061c",
    "signer": "0x1ABf6DD41fe1E6b1C2d3A69859a25C92caa31b32",
    "userId": "17689"
  }
}