{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18122",
    "entityType": "User",
    "nonce": "0x9cb6e943b461b8e91a4b19f4148d3afb9ef828139bd4a21b48e641c16f1705eb",
    "signature": "0xab7a6c5402a91914834dae60e41a334d5c37c7278081bffc3fb566a788d1facc43eb4abbb3369bbbad66a467263a9632521fad58726f893d1c8a6351c76d66fa1c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}