{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17689",
    "entityType": "User",
    "nonce": "0x76c02d5fd6b8b4794d58af226dc6639b703836bbd547766528bef80c713fc6d1",
    "signature": "0x9cd12283395c851289cba8b510ce25ba1aadd902500d8efcab2161772260dfc568008a60b3ff6a54726b0c6fa18a4a442b198e1985f237ff1a8999504018618d1b",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}