{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0xea1730812e2af9f3703f801c7e019cf1dc6b329ec822874d0e4938031863039c",
    "signature": "0xd52ff3083075b6373ae43073bed2c4d6008b84589a7b13bda295608624b34afd33ab00f93ed82bab76ed63a815a03771cb4b9b4360e0abc16ca5578b2704f80b1c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}