{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdadff67c5928d0b9d67447a1c2a4875cdaa446a96af9a6019da2c4b6e445eafa",
    "signature": "0xd62f6c77b4ca9ee56ec9707b223643294b1f13de320bc37edf912d28b6a1d301501174a9e86cc278f45e0f22ad48b5a993d159ed25453753feb5de7f1ba4b9fe1c",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}