{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3cd2852a3d5f8ec9ce064f446e6b62cbaa7cf7b18313e68c5f49b9c5e04bf912",
    "signature": "0x754c066eeb5f3ac6e5b09489943335ece52413053d678399372b0a5cd364f3162056184a46ae6776b986bf15f78163469e4e5bf587255f2934e783d32f17fbaa1c",
    "signer": "0xa4Ae03e32d881b4a91e97a5934E7343BAfD3f9bf",
    "userId": "912031262"
  }
}