{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355113",
    "entityType": "User",
    "nonce": "0x057c8b3cc6835ea844b136add9a6530009f7a6488b5e53ca3c3c3b03606bc5e9",
    "signature": "0x8f9a3ac1b3bbcf49795e2b077668f6773e53c5ca0bde43be6f47e82729ab52f55838400ef2725bcccc60e6da7f299cd209ddb6504ee24929f1124de9af8baca11c",
    "signer": "0xE280E847d2A686a5B17DF698d98323E53A33789a",
    "userId": "915319400"
  }
}