{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x00f47d34a39a7f28b716fbc99e28f997cc2ab7b5efcf7fbaaa29a9a5a2612c66",
    "signature": "0x572afdf07397c105d9d04b9a2334bf79ad55d918d721abe2985cbd4977d536bd52eeff104300093e17645cb230009df03d7ee6586d90b98fd1afc3032a3171831b",
    "signer": "0x81f60DEAd0cdA833Ad17fe7Ddd37b36E62630205",
    "userId": "132087202"
  }
}