{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcff146de3b7dc6da5fe3dcf101d7185be249c0ba572576fcd76d473d2fe668dd",
    "signature": "0x7e459dfbd85a15cd452925fbd9e1942ef5cfd1b2f966bca12537734dca4bf0703e1cf35de5310bf702b7a2a40856c7b00e1ed237060135bb252e81851cfbf64f1b",
    "signer": "0xffF86E383108dC6F359261DE877D388C77c29146",
    "userId": "173756945"
  }
}