{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x214623674c755f4c4ed7647da97fb02f1cdca4d5f876dc3c0cab14a6d97b3b9f",
    "signature": "0xaf62594eef56136a7365272050b0ba9b23aa8e911a36dbe60ed730e66eed924454561fb317e54d10b19048f4f106933b2fc1cb3e5db5818daf002e9fc0de79fa1c",
    "signer": "0x7b0673f85be6B6f5d7A3CA46d9b1F6DBe3D5F1F9",
    "userId": "310162214"
  }
}