{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x1fdb1bcc9108d2b3c49ac8c8f8964edd3fd8147ac4eb6821ed54b65644a3dfd1",
    "signature": "0x04d52521482aaa9f7db53dc5d6a246aeafe76cffebf3490c2b8fcbf4abe2fc11065162ce395abfffa538c34f685dca865743bed5a53677b2b55487d70f9293eb1c",
    "signer": "0xf76Be3e57D30ebb176cA7D31f49157c7f56E6b0D",
    "userId": "204302128"
  }
}