{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "11520",
    "entityType": "User",
    "nonce": "0x03ded4bf0eb37dc9216eef3a5ebf7cd79172c7dc65336d236b0b2eeccfbc4778",
    "signature": "0x5bdf2e2145e489bde0cad21187eebf97bb01bb444143fa03a19e7c9ce7be750c2f2c4d84f3d4cd5e5a235381f0f3c1ca3859811e159f4adaafbc85433398ae931c",
    "signer": "0x85f9d440b61768a3EcC7D5bD2307a38caf322BED",
    "userId": "242102384"
  }
}