{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "711658625",
    "entityType": "User",
    "nonce": "0x4fe3121927f8af971a6687307cf56a9966a8097f250c92d182861e93ac9f175e",
    "signature": "0xfe104579cb8ea2117f5b46c2a9c22fbbc61e3ec04916a0cc03400f753e37b720008136c9c9a0f42c241afc09a00477f0a6fd0e39961a36edf49ae7dac792e8d51c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}