{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215335",
    "entityType": "User",
    "nonce": "0xd465717048817a24af8ee78b3f21568372cae20134d332d6f61f74b74dc73f8a",
    "signature": "0xfe52489989fa3c33e76e6ddac48adc119d1b58ea08fa03fd8142cf3afcde27e16ccb88f4bbcf9b4563d6198d2b93eb9a2dd439be1d336b779d6878a7f07d2d911c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}