{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "113440",
    "entityType": "User",
    "nonce": "0x52f5dfe7fb1532ffd585898eb483c2179cc918a995751299508503c3198be480",
    "signature": "0x8ecd43307af4afd1ccc0c8d6a8a6537019a91511973a7fcef9d2a526df2a3a2e31325aac53d8d425ece769571795f4f02bd7e57fd976aaf4cd3905d6cdcb21611b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}