{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9780",
    "entityType": "User",
    "nonce": "0x0abbb19a37e9f87a88dbe659c2a53df6ce88aafdb266601faf09b3d6683f0538",
    "signature": "0xf52b09f661116212d4772643754d40935a4300e27ff5f58346abea2c8c3214b764e49c8f6932c37ec1614ac7f7272ce6cbd9e7309566499ede10774699072cb81b",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}