{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38974",
    "entityType": "User",
    "nonce": "0xfd4a25404035b1a06cc4a55fc9ea344599ab1a8db7950f28cddfb35db3ae4b2a",
    "signature": "0x6f00d7b87bca5cc0ddb68d9802fa57b2756901a5efa6dc6de8aea465f9054874243eb1e3c22fcd90357240ecb2a1c69c0e681a96630393dc7e5e08971cb6b09c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}