{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x24bedeacdfdf35ed9ab7e598c3386446d641a589d25b4c0073843454318b2ea9",
    "signature": "0x37284e6efb06373571b03da6371dec74e52a2be475d10d4a899318ecf05a3c7717f7712969a207b3f291e80adf1353f8be05e53beb20c876b9ed8e35d5dd769b1b",
    "signer": "0x62Eb87c201eCbA486541cEF3E45300065c5C0516",
    "userId": "424568039"
  }
}