{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "320968767",
    "entityType": "User",
    "nonce": "0xa4d01aeb4af88fa0e99680a9fe7406fbde89a2a2de86db276fff2882add2d76a",
    "signature": "0xb4eec93ef6f9fe0d5a333da16eb271a1797e361e82db90ff15c1b33b08ebb70c26071013fc0f8f57f093990b9401f5c1991ca55310a6ac5dd4915b80f065fcab1b",
    "signer": "0x20Facf0058127c72AB90d0CC6196d71784F804C1",
    "userId": "735645683"
  }
}