{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333575",
    "entityType": "User",
    "nonce": "0x02fcf468dbe62553541022f223ce591d98e01d15ff915aa9c381bf0c39bd38d4",
    "signature": "0x9d284197701b6d37f3d379341bf84ef35ef73d778f1022ce5deb4afb5d39a0ef6b33cd56f6c047d54f8c63be99dcdbd978e939da49d12f8c7e5aa0cfb2be66e41c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}