{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0x4b8a328cfb8c01dcc7af411c84ba5d79ddfb51565cadd6273a5ceac5456b94bf",
    "signature": "0x08944dc5dc52df47f4df913784f1c22a5130bfc3e30b521279ec8e56d31ef7bd43b3ccb4f11487d708304f07c8b5b9362f7e756575726fe2a82a5b32663c6aa11b",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}