{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "801898123",
    "entityType": "User",
    "nonce": "0x40dc60a8ccac9a93cb7a41f6b34e9df3d9aea607ce15e5b8f3e8d1b27b240c66",
    "signature": "0xa858827e7826a5dab95e2da794cb321c74cc1118c172f27777ed4fcce4c5325b1f7b2c02b2f9db76e1a9e7610e19ee7a496bc6f48ae6a40bea35ce537aa74cbd1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}