{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129387",
    "entityType": "User",
    "nonce": "0x8f1643243dd0eb52f369daf9b98c2c41d46cda0f373d7248ee0de0ecbe1674b0",
    "signature": "0xf5013957e2d76e3a47e9646182332f63a198e15d77d3c9d4535cd8e718cd2c1161e9685d06ab4faafecf7349819171f1a053dd615426f12e820cef2f81d8f1ba1c",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}