{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x2e639245605703da640524511ba95ad9485fe5e0cd0189528f3087cf801532e9",
    "signature": "0xd2adaaa7d5c6f10bd7d8a1da951726be65abcafea92cef33d95070c5456149db330f3bb34dea6e50bb5cd7a3f390354633d064b242ff4b71c14ef5d7a7aab7d81b",
    "signer": "0xfa0b7c5C31eBA7622AfE516eb7b8aD45EFB4BD28",
    "userId": "734513560"
  }
}