{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2554",
    "entityType": "User",
    "nonce": "0x17dc03c54980a536a6a5044ca04e486b062351290da645acf27ad670d9b33754",
    "signature": "0x227e59937005696fba378602324835f743ee77e27004e7101b0c53be89fbbdbd56119c00936c2a38ff431b736f29e52a8ea9926b434d9240c973981340efaf151c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}