{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108203",
    "entityType": "User",
    "nonce": "0x371eb45d771f5ebddfb717e8894134df49586d1151a8cdbdfa4c28c2471ab16c",
    "signature": "0x42e05a0cc0b3523b12417f8d54e356debccb582b10ea92474f2fc8da01b779a023db3584dc5900276c630104911eb3ab327684562ae35c673cb9c4d9a7620bd71b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}