{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923551697",
    "entityType": "User",
    "nonce": "0xd301702be274b73aab20c5b366c53455b62e840401996114c295bc0590839a85",
    "signature": "0x17e414eb9e753674f97fe8692de92d8a242217856373bc062631621c689cb865497b270e13d90dc9592f26d8c093668cb43b4419df7c854cb7b690af16154e3d1c",
    "signer": "0x5501467AFaA7897fBBD65dE583c7E74577B92f74",
    "userId": "608591950"
  }
}