{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x456749d89d1ba7eacbba13cb8df652200eb9215e44f8d0befb0107beaa937922",
    "signature": "0x7928d6b2c1b1b2af72837c19d41574ce8ab0a2804e5d04e90d80eb7710b135cd3d8a12bef5a4a89880faf8af78c503a1f7d689acb61d564ff140da79d2f64cb61b",
    "signer": "0x8b35F6c2f94CE40d4327c9A27d8121B4AA14e3CD",
    "userId": "729154616"
  }
}