{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6b9954f8a2205274fe5e592f0813157c5122d37b7dca6c556307041bd73fab2b",
    "signature": "0x7242650977fef83e4b81b9d6903789c62b95378f43a22f2cffcd79709776754c1df5143bec72d3734be7512807a19e5f594bd87add3a8b5e645b551f5d1af9f31b",
    "signer": "0xd8417Ef2025Cf08B03D8939913A3C227CF7ebCd6",
    "userId": "984161608"
  }
}