{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xad073c3ae174286c0813db65a870be4b945e8708f692e5aa2e3aa5a42c83cf54",
    "signature": "0x8f700bb2ef81bc1c465cf46aa53ed06c35f63065868d095da4f04befab600a645edfd264a9f6e3ed8922ebe3e10e79ba0b5a8d42e3e3e571c17726f24ed2d0281c",
    "signer": "0xAd948EEedA4AB2d06bF3150Daf2D25De733e7Cd5",
    "userId": "175201368"
  }
}