{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10678",
    "entityType": "User",
    "nonce": "0x68d92c18b3a1ce789d940504e7f9dc016a5fb4a29b22f6df8c8d1828daa709cc",
    "signature": "0xd26c732a06ec3961b1ca26bb6a8164c975c78108224a390e4fe5474e367d6ae64829c230ea85ef2c1a899fdee10a84dd07abc04fd8c25734042887cc39c07db21c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}