{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77401",
    "entityType": "User",
    "nonce": "0x105fdf2c5efd43222dd18297d39c604293211d9da681ac17cfa39a653149e8ef",
    "signature": "0x074bb95a97fc73e88b0ca3a673d61f9eddd1461b2e0486a13cef74402fc0221634a0a3d926f0977f9961f606f87e28b72e370e4875aa903ba6156bb6dc3b5a331b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}