{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10",
    "entityType": "User",
    "nonce": "0xef832fcf3d359b353e11e191396502690364cf57f11284fc4d7973b500bbc601",
    "signature": "0x722a1d9dcee435b1963be840c15101257ad841dfc1f83e09c6fea536d6b841884ad1078440b879b0f39492157b99a4ffb526c99ff350b509cc24dd2e9e21212e1c",
    "signer": "0xC276fF68426672F516C841b992c54507ca235637",
    "userId": "382050600"
  }
}