{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "578212224",
    "entityType": "User",
    "nonce": "0x77cae2ff2696d1bf71c026d33d841ee80d700b7f7c8e928ae267ee6c36707c28",
    "signature": "0xc5fe30552df8a29cb91f5986310c54a08b0fb9b72d5766680cd43a2154ecb0b35a8dc8fe5fc1d7899b61cd6f134ac059e9a6c7a6f2cd938c29b063ce39d35b1a1c",
    "signer": "0x92a5082636c97Db0Ae888484D85e4c8494A3B791",
    "userId": "895527427"
  }
}