{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd5232069eb0620ee1401bdce19b957a3d717a2b3168c8023da614227be792f07",
    "signature": "0x55d99968e96f78b27170dc76aa83ca838d271c6c3a057049e7e718d4db04f1b179845dbcd9b33e7c62bb6d62c60f9f56fb3d13c45a6e7d23abbe8f63b9a4baa61b",
    "signer": "0x1815853A3D3f5b8c2490bD12f96176a3a4Db22b1",
    "userId": "957405762"
  }
}