{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354535",
    "entityType": "User",
    "nonce": "0x391b044f71acae34ec7687af8751eac8ceb3030f1c01ecaa26e15c9830e87e11",
    "signature": "0xa21a707a2f012e15a846e8f38ab215b83102a49f576ac35289b44c23cb267a8e55310c35e60a80545ee80c439f7ac4a9080220a4b1f0b6e42ebee84fd790e5ce1b",
    "signer": "0xe270C91f9476B885124d6c0208211213dC10036a",
    "userId": "94825285"
  }
}