{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141625",
    "entityType": "User",
    "nonce": "0x521869af83c1f6b7342a0056bae2dfe867768841327450e3440cad5438f9fabe",
    "signature": "0x2144dabb755c6dfb144b0f026c9edd315c4013b077e0da5bd2ae2e4ee166e4367f76c14ee5fb9a7b5c48f93e237e422e7762ec0a05ce7cf9b001669b845e61981c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}