{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xea3b3811cb06bf0f971c50e9fb902ba4aa8ad31a30a9d7da03887e0a0eb8f1f1",
    "signature": "0x3a7285b8ac7871992d35c7d2aecc01b0b49dfdb527b58b8dd9533bbbc6a71bf12261578cd2596fa7fe643bfcd37ded49c2f51a390d1958253c5e33bee34d061e1b",
    "signer": "0x0E71C12c426F5C9206F778713f48B60477CA943b",
    "userId": "29088079"
  }
}