{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "617992566",
    "entityType": "User",
    "nonce": "0xdb8db44c7b080dc87dcb8cbf332c1dc9bb26aadf1323533263f7cec3e70b3dba",
    "signature": "0x4357353d85b4ad7ca4a6a8d407dbe91f9c77027d4084272bcf466a9cbca1f4eb6bcb32b21436ae1040cb563ea0118aa52d15a05478353a11daa739b867dd0f2a1c",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}