{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "967323686",
    "entityType": "User",
    "nonce": "0x2e4338775abaea93c3eefe339115c6a38ae9ffd329fea2a1e1f0d10da2d32a96",
    "signature": "0xc8fc98684a17c2e49ff8c363533753bfa6fb19888de0602dc177c86613ab426a4271bec5d28e131055525237e9ca0e81ff8734b02a0520b82bc4feac8f37d03c1c",
    "signer": "0x4a4E686a6442e2Fc2495a7d4363B25c583Ea3c3a",
    "userId": "34815"
  }
}