{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "356472",
    "entityType": "User",
    "nonce": "0x7d0008df3e8153be8b45955f0683d9366bfdd89234b445f3c8443f61c2a42e3e",
    "signature": "0x700c5b7268d1e0a514f015303a5c2aa0e2b7ea4f8c444e5a9a50e3e8098ffe1d19d188c45b6296c88203b0a02a83ba80f0da6337356e727c8eaf08090fc134621b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}