{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67976",
    "entityType": "User",
    "nonce": "0x139329a53fb2b1f41fc11b34ab0bc3a912ed48d0a543afd2cb408bc87b45d9cf",
    "signature": "0xe818f178ec7ea46d12fb9a10a441d6790a3cde5753329410659408bdd33fcf240e36ad29a74c320eb94e99215309fba61bd410e5e32087d70d16d7bbc08b143e1c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}