{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf9afc9522df093f9fe0c25f1ea6cc9051324eba7c4b8167aaaaec22ee32bbf47",
    "signature": "0xf076a849b81f847ebc411c3a3e8a156708efcc30b044d9a08130ced705821fba2df2ff45cb66932138e250cfe23ff8bcc61f08aa968f803e2a9654a259af54eb1b",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}