{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "24565929",
    "entityType": "User",
    "nonce": "0x3620452c834a507b30a2a4dc2a515d76edf26b34a442a99f0fe8201c5fab4dcc",
    "signature": "0x4a1c6db4456f211e91fe26c2dfd02a2cf2cb7f464cb90a3670d3192307a6d2ee1c392edda5a0664f0d0cc98be4c91360e774d7c311a818dd2b7818c6054535141c",
    "signer": "0x8e843e061C77d2F2C655e7a2c77c231b0A89eBA1",
    "userId": "10318501"
  }
}