{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40630",
    "entityType": "User",
    "nonce": "0x58681cede2ed2670cf73a88e2fa437c430cbbff7fb344b79b9fdf47bae28f454",
    "signature": "0x311b1bab7de47b4e8e48d225d59b22d76c337c2fb96cab013cb536cd4e923ba736cf3cba1adc5eb3f01c083d6fa4d3dafcd8fd204b59754602503011800ac4a11c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}