{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb4197c20b6bbcec910cc40b89559690b14bf55d86a7fdabd23aac7f7330e9422",
    "signature": "0xdeca8104a3c8b00af4eed9e32e366780e50743e651f5e5451acc4cfaa8e2a9602fd3f634d82cd2ea8ec6efc61278d669d1af2cf00bb2166288d86c76871b912d1b",
    "signer": "0x62EEF0f9D6B799675A2d15CB1673c08eBa0Ff68D",
    "userId": "138609491"
  }
}