{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdacf5e01ec01d512a70eff16b9ab18f97bc1f55be25a91075f8d44ff449f8044",
    "signature": "0xa97db2ef09c015b518c7cf9a7c31a386d3abbb6bdccc749b3e84371909187f1e522f6a05611484d4fb2297fbe3b631cc687096bcf955a0e2ee0ec392c04486091c",
    "signer": "0xb3BEf78D87738d0DeA1b176317F1db0BAe3c178E",
    "userId": "701187214"
  }
}