{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "231089",
    "entityType": "User",
    "nonce": "0xcdc7bac1cf9ae7ac1c38e5a31537ff4b80a8a725bb9b2f9527e109da1bf9cab1",
    "signature": "0x219c757a934925a1ee97b7a77d2a80814bb9ce604e5cb15684360c54ac8d201b421907e855715777363b770252fbbb7d4f2395fdd61e2751af2026219a06befb1b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}