{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x5fe703fb9d0fe878180123f71ee5ad46d77204579aed56d18e3484520067a0f9",
    "signature": "0xe3cc878b025879ec1ec222bd9d9a6cd0fd8d90b46780a1b2e49700ca0404af38323f94e4ee5bdbc1f8607f97addbe251f6480fb16f292eff35fc6ce2b3ba402a1b",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}