{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "338557",
    "entityType": "User",
    "nonce": "0x467c48466d019725108d26f687fc19d08eccfab6e245e138bef9ba9574067a59",
    "signature": "0x5ba731b46838be28842524674e8b8a782ee583c5c04acc62ea96a8ab21cd1f65730510bb6ad39afe88d6dd7e19f13823b56caa5c28c2fd07a8d230ef1c2de96a1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}