{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52309",
    "entityType": "User",
    "nonce": "0x7bacd12ba071c543fd406888b971ffad70cc54dbe1d1a7c8b66c8d063ef561cd",
    "signature": "0xc0c60c522ddfd3d79b35e87f3b894082c4334aca072ca48cc8980ff7e76e6e734248f3b78ba610a54d6c6dd228d8019877489e9dd3eee75d4835819a4684d20c1c",
    "signer": "0xD4075518293370C8887D8dd80B16bc683A59D633",
    "userId": "743640235"
  }
}