{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "187440",
    "entityType": "User",
    "nonce": "0x6e72e70a23a3895a5f210df300ba9fc1abd49f11bd6e07ae530db2d1a67e1eb1",
    "signature": "0xfda57aa4ad95c3a2a97c96f3022d0173f8e5a8496ee73ea82cf480612b4f0af8453830d292e97df62b6b8ce35945ca71638377c478665cb187f3c5cd9caa7de51c",
    "signer": "0x63762Ba099c2247aD3755af8aCb1d62705f0D5CC",
    "userId": "851444561"
  }
}