{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1885050",
    "entityType": "User",
    "nonce": "0x2ec2f5724fd5610b57c07999624fecf2426e7447346d70cda0a1349cf45b918f",
    "signature": "0x9f05926e40274965bc573400364a9d0ed8cd9363e429e091dc88e76e4f4a58530a7e59c9ac56ee48ec589d0cb5a7a4816f4d17d9adfb9b332fdd3322ca4c886c1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}