{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x4b3d01cc84b6f57793962bd99d82f195a3c404c5c27c3ed785dc2a1aa407a38a",
    "signature": "0x908ae5c20ff82df65cde92b7ab0fb33a81561748198ed44a1ecea1349db9d1543456780d758bb89f41754d790bcfa359da8a48417806ac63547ca5feac2033911b",
    "signer": "0xa22176a11BF6703EFe39D488aA7cC06aa781C44A",
    "userId": "633924738"
  }
}