{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "535114",
    "entityType": "User",
    "nonce": "0x7f2741ca69cadaef4036ab561b16c487b1b326c3e881ebae076561ab4d482169",
    "signature": "0xa21e93b2ad6262ea43c3ee2a8013506ea7209e336872989382ca694ee271aa3459aa0ef9cc2237fbe6030930218de6929126eb20cc19533d90f4a7f5656ce35b1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}