{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "224383",
    "entityType": "User",
    "nonce": "0x397f3c03d988c679a520eea9c395b81d3bab668c8b52738310f6c365ed38ba77",
    "signature": "0x4b43998c7a120badbeb41ee191b3cf18b3cccd75ac92ea4b69fc0c2461709e2e3edda3ca0817c61f83bb779b626d77344ac5e23392defbf7622d5b0fe44f6db01b",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}