{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdfad017047c754104b032d38d8d67182d44cbe713b9da9417e4fd561b07c02fa",
    "signature": "0xd72255722d504407492e15c26bb7a62663dc2ad858e8e020f9febb4ea39917a37247cef0ed7c2a11cecb363347b0c203a9aaffc043824c7aca6214803025cba51b",
    "signer": "0x2A3f50b5422A02b93B649aC6F727FEc0f41F23bF",
    "userId": "781355398"
  }
}