{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "508263176",
    "entityType": "User",
    "nonce": "0xb8148603fdbee2aea7f052d6bf53129f51546f4561ff4599a8cf19ca8ebfc707",
    "signature": "0xb8d3cf95131fbedc913a3349c1d12c15bdf1ca9f404b7e645a389d07007f0ed119908e1e776aba88830bd3379a76c699f9ceb8e86ad1b584a11d5834869056301c",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}