{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3f178d75be2df88c4d917609ae74e6b9aafc2775dbee6244b8b0add6f13d50e0",
    "signature": "0x3736bac0d2bbd3a4b1a63ede695a1e1c2219be030034e2239fd55fba361becc34b7982e667481ae5aea9e0e13053b7976f4f40723fbcabe89873090cca11c2f31c",
    "signer": "0xB28c3e71Ce63Ff378DF87C1f77d4F79d444b5E98",
    "userId": "92529900"
  }
}