{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "299279",
    "entityType": "User",
    "nonce": "0x47ac81ff50791615a1310c427014d7191ca2d166431df63b4c46e8b891386bdd",
    "signature": "0xc00da06ecd3cd4d42a8448e3f620cfb2b4a60eef100a9ef8d99e3a963db4c09c26d6c4d1f1876f0d93026d73ab9ef7186d43e6ac528d24a9aca422dc52e20fb01b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}