{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7892",
    "entityType": "User",
    "nonce": "0xd007c36c62bf88712e7c98ebddcc71af84e158aad361b488914bf6755193bc95",
    "signature": "0xd969bce00f6d239f39773fc59e10e43ca722e1944ead08a1e538af3c3896be2f4b7dc9a65d49dd3ad3015d911db9a92e560287686162cdac4cb7dada00c7e7711c",
    "signer": "0xE4EF593fb5D21ecF6B00BbBB006Eb9725F5F7a5A",
    "userId": "852971520"
  }
}