{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871929900",
    "entityType": "User",
    "nonce": "0x08f3f04d0e03a6dbaf4bb94cd886117aa6fd9dbd9b0607fd092a7ed003cad3fa",
    "signature": "0xd86ef745117f7d4b184010bbcc1b36b562e9e1508610a01dc03be4ee0a5c00b30b79bb56866800e9625bbe3a1622a235a5649b4cba95d692e6f59e864b3d6e491b",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}