{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843421708",
    "entityType": "User",
    "nonce": "0xd3c6462e61f0c46a8ac69146602207aab027eb04642633c7b270b95bc9a821f3",
    "signature": "0x7c6834e46573190e616a6f565aa27ed8254475d9797d319a401fba0c6fba59492b9282aa1e8f3be73b425543ddc971beacb0f7c2f7aadb346ad4f865bd9dad1f1c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}