{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0x4adec1b88a1a06498e7a06dc17903a2685f511db12885c21934dc627984607c9",
    "signature": "0x364e4f14a6394272ca6b9264ef1be2d1abba330ea0354e5f1a0b5bf848a9b0d16120e685bd83104e86b02d928dc192abe5b9b54559a144079b0973d404c588f51b",
    "signer": "0x2298E32DA0e7c080878c6C1eAB02B255510f0Db9",
    "userId": "570472437"
  }
}