{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "699855727",
    "entityType": "User",
    "nonce": "0xf7675e5327e457c743a9ce7cf01531fd459f5b67830ae2548e248234c7af6b6a",
    "signature": "0x32b0820423e6ebf11aa91fd412b906f1a32bc2020c2e73ef6facca942f4920915e4e9453a14bd4aa8062ae80c0ff7ab3edc4606d6a7bbe8ac49837ae1e33eb4e1b",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}