{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2619",
    "entityType": "User",
    "nonce": "0x3313a5aa194effe2ee1539b9ffc0c00bc2ada1d754a9d50afb335393b62191a2",
    "signature": "0x6c36a6675c7d7881390314420ab9262dda2ccc598c7520bdeaa09d6ea895d6ba36ea62ea08f45dc7643a77e7c1f38c9074468d0ca9323ae717d4574ad7727b131c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}