{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1c0159053ad91b7dd2dbd289406bcb178e179d1c6828094dc5f91151c6bea1f8",
    "signature": "0x42107dd66aa0d9a35da781c58e14f276ceef13357ff438cd3a26ff7d445d8a8739c35b33bad71052ca5e25e9fc711891128a44c68993c9813c9085df77b54d951b",
    "signer": "0x60Eabc2D30d69b6119477978449B83121eE082fa",
    "userId": "536201590"
  }
}