{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "228837",
    "entityType": "User",
    "nonce": "0x93a1790998759aa28e5dd884e8b277b383fd8c31b43ff6dcf3ebec8d82a6efec",
    "signature": "0x98c349f10d4573b689385dca3e03e2f1cbc73ee770e36f40fd5c8645c1a8754525011413cf20bdbb7199208f0a4af26db5e37b9c6bc70becc38ed435943bd0861c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}