{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370091516",
    "entityType": "User",
    "nonce": "0xb55001ef5bdf0dff634a6bb7b12082f6c6831bd4805e7e8f4b403ff2b9718a70",
    "signature": "0xebb5bd4083aada89fb4f7a09a30b912bac62dd59a14f24a1baea760249e9188911e1b4d8053e1562503035c5444c9dbe13c4c95ed10b27b0a1fd03109cf3c2e01b",
    "signer": "0xe309B4910De68C7B1DcF8A12b8F7603E6cF8576A",
    "userId": "354814803"
  }
}