{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75062",
    "entityType": "User",
    "nonce": "0x23e398afc6a16ad7db7286adef7726f00baf7d765bc99a80ebcdba8fa48d942d",
    "signature": "0x436c797be2e4de6f83effb5b006e5f2a7b628ea9d3d87f6cae2156f26f22ac0162663ed21d71e37bafcd423d3222762a17940d282b787289f0cf00b8623004b21b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}