{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x77fd370e7ed0dd3400cd38f19b02c735dd75d7fac5bd66ad424fe48241251300",
    "signature": "0x2a1c1b95a4bf2ad217222785c91a582cf28edaa86609017726b2f02a0d72e4d956cab7b4c683a48fb834ea368991e8a82008959b7f2846ff9ca3f6c51b2ef3f61c",
    "signer": "0x12302E88Cf971407d5bdd167b1AA2664556D3385",
    "userId": "68176371"
  }
}