{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x5bfc9349a35305bd2e47576579faf7861f6ba9241101feb7a36172ceecb0bc9c",
    "signature": "0xced59cd79cb8181c8242b01ff5d9f2599895284be93e3341ef0df2e6cc5e920529826a95dc5f05a9e18e5646de7840494015534246dfe8f202b5bffc023004311b",
    "signer": "0xFa074f848Ca977aCBc270CBbfd4c375c210eB1cA",
    "userId": "939103135"
  }
}