{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x404e321ac990387718a8cdbb729eccc279bdd827ff88328798174cd303241b14",
    "signature": "0xae763488fe736b92cf41f47764a477c2ce9631c6cee218436e92c8829c60bdf429fced6a416e6c1cbaa75b813741b782201ab7ec92fcb37c828635d9291088351c",
    "signer": "0x09c62f6E5c7aBE387159099a93bc138837ED1DA4",
    "userId": "627688539"
  }
}