{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x15e2ebff61f421b2de73e0e2dcfb5cb72026d9076806d4e678af7a6d905a7dbb",
    "signature": "0x8e19fa36116b66bb885c18f6a66033f9be93c9e643e674e795c8dd6d77b2f7de31b576766060d981061fe9a92346bc5975513cbad121a7ad46e2d3ad052f4af61b",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}