{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x58aec62a0c222c59af191bc24082915e26690e18c6a24af4132f00f742d499d3",
    "signature": "0x28ded628e3bcb681757a4803e98da32dfcde00f1840a41e778b9c73408112e297b202c560e0e9b8be29c7111c0eaa5c6709dcd21d8fb27eecf57e5438b386d4d1c",
    "signer": "0xdE63b4988BeFAfA6DA439B1A19b5d3B2a000A05e",
    "userId": "487437002"
  }
}