{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111210",
    "entityType": "User",
    "nonce": "0xbbc88c6af8e161b4ea629eb6ece245723ef3288fc6b5a8b81d2fadb2589ed49b",
    "signature": "0x7adac31d75207ad519b3c2e4a364b9d34cf8d5f39a1a0027b89e653714c25f636f05209fbddae91cc057fb57f47f0dc5a31ab3a74fcd7362bae3475f35213c9f1c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}