{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "350268",
    "entityType": "User",
    "nonce": "0x6058804b04ccc922752c81128ffb60c3dae73a0539bc8f4932a34dfe0232ee14",
    "signature": "0x83d108b4edccfa01e5bd4f9714726fd536bae22a71d4e297e3d09c912020fc4764dfcb414b7335fe0de169255b2d9d3961741fa21af832d16528606c672d23bf1b",
    "signer": "0xFEa2c41d314209186e519b7539c0FcBDa1F9f00C",
    "userId": "51657002"
  }
}