{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43009",
    "entityType": "User",
    "nonce": "0x9cd52b9a89f61d8d6320f1a750f4a249f127c231d7b47b7853c969e35c78c854",
    "signature": "0x7736f1748abfcc06d1f5892beb85c469e1c44daacdfb76a7a9c9c147e328c3a4774c8d4dbe38c75baa6e3507d2c14f7d3789561d1c42522bc7512544239c87ca1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}