{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348740",
    "entityType": "User",
    "nonce": "0x18ce1c6f5ce4a9a9e41d02ea948bd963e895571dd604b37e1dbd48e1fe36c842",
    "signature": "0x0c561b33aa3eccd6875f2568cab929bc1d939035842ff5a6d2c5e02443cc689506e99b0f7ef2a240ced150e69d4591afd1e1ddf5404b5265784404834f72d1bc1c",
    "signer": "0x087DA11Aa59776EF1A43c6c40382727d45964831",
    "userId": "395079621"
  }
}