{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "787067",
    "entityType": "User",
    "nonce": "0x32e15e21056d5356a5e016e82cc0180a78c6516e37bee01efa5e48e8be4ee1e7",
    "signature": "0x63fd595ee411015f9ec796c06749b560430c3c765e04565ca5012617376865aa34371d00970ad34dc0b6bb5dd262c451e8dc0c0dbbb92da99296ad365697d4a21b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}