{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x400d781fb97ffcbb8a76b0a7c8cf154295c5aa8f92e35c46365f2d864f83f99c",
    "signature": "0xb032c28125434f456c721f1702b940fa278b4b8cfd4b45816fa3618359e2ce6f055c4486e1a603cba37cf8f68750dd29e6a67b879672c579c485db6f21c9866f1b",
    "signer": "0x64F598C81c0625EA190d421bEe9C604A9EaD5ea6",
    "userId": "462839245"
  }
}