{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854498636",
    "entityType": "User",
    "nonce": "0x59e561f0df6bb3cc6a095f29f8b7aede8a64bc59f32bcc0d6c8691cb4767f59e",
    "signature": "0x5379289061140de7493146f3957eb877f54298ae4dd5db143803a66cde4f57f37ae45b2a2a1a276c26df0029ac09717aa61aec45cae08896b9b12a24b6e6aaeb1c",
    "signer": "0xb0bc7585AC84F169814851A3C22d8d92D133337F",
    "userId": "267657235"
  }
}