{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0x6139389296257bafa5c78a6baf8cba72bf7374f71a59aaccf794731b26fe6f19",
    "signature": "0xb953051c87d36055833ce806dd1b0a25feb602ccdbd674cce302e01ec20a94233531efe09622e842a753d6898a1a062e1faf0903cb6063f89af730df2470a62e1b",
    "signer": "0xbAA633dfD19281ECC20a6b689F49CE8725d526Cc",
    "userId": "127651"
  }
}