{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51497",
    "entityType": "User",
    "nonce": "0x63b21988af2adeb4fe616b18d328c90bc8d4d58cca9c253741f5ffc72cc6705d",
    "signature": "0x6ee4af63cf5667d95ee4e45d9ad1f414402b94b9de935095671f6b40c158c8995eacd75c90a27a8b41f245da52e6e4838700b208512b865aec6763e164b470bf1c",
    "signer": "0x7a252808bd60a26fe5184c95eb104CfADdA8D4C1",
    "userId": "186415718"
  }
}