{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327605",
    "entityType": "User",
    "nonce": "0x486b3efd95ae5a50fcec9229f3834b29581f05267c39bc29fbc995979d52f066",
    "signature": "0x831f52bc320bf51d3475609b4c04736b042d3b5155d3b56b8eecd1379d9815030bde6fa38b0d5c1ec8a73964768f244aa56fe0069a51bb89bc8358b1e0e57ea11c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}