{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x72f111296176e53baabe688c9d4bc3900f54e0c1afc83964867f47ed6f8c3a72",
    "signature": "0xc356cc38ac6bee2a95b197b5c257c07ec9c9d31adf84f3a87db8c407cc96ea921d377aa2ee8f861345d5135957d939ae0acd01aeded0bd3869c245664ba8f42a1c",
    "signer": "0x1f22425addD7DdD5287f86662672aC6Bf6362A8a",
    "userId": "762700956"
  }
}