{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "813286257",
    "entityType": "User",
    "nonce": "0xdf295f50a46b455a09ba56e62778f3b80fe8ea1c7ddabfda7b1eb56374be8ca6",
    "signature": "0x40a8a8300379f4658eac190dd87013acde44b9187b6ccc19bd68abae3ae95388623b6c5f07446bc8241dd7965ad5c9a71a6d6910db0b2cb2a68c7ef54bab13781c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}