{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "634886384",
    "entityType": "User",
    "nonce": "0xd77a7a85bc1f18dd6d6f9cbe2e538fc792a31d89fa568e41c70d95c143c40a07",
    "signature": "0x05c83e19b692a11a6f921539eca03f402391a527c74b18f48b30c11cebcacec074bbcf46dcee8efd80ff7514f05a966884597631ae5dad634d8f6046661a98b31c",
    "signer": "0x1B7594799b4E189Ff1B3C4fD8289B2e8d82B000b",
    "userId": "66769284"
  }
}