{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1470920",
    "entityType": "User",
    "nonce": "0xbf1f23fe543625cf1e303e5a125cebf39b705279ecd93ac3c9fb4d8190878f8c",
    "signature": "0x487191ba4eb64145ff82410115f12e8d4b9eddc307707eee3ecd38f0a39838895729131d3574e268f8063ae8eda38249c6ea87e55f2493205c68d9e9c14ca3251b",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}