{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0xc3387502b9cab9a3a216c861359655574a669ead7178f5f7d202e03d3d0e7737",
    "signature": "0x6ee31e256c8f3fb272672967df476bb0b2a1cc9e1cbb037af13b3aad96c0080218d693990ec00c03f2af6c7ec37623ee63967dfae159545d1f0e30d3b2c92cbc1b",
    "signer": "0x195d9eE11400245E841C02c4b4288a90A8195e91",
    "userId": "103785872"
  }
}