{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x57f3a86de29c5cc1de539e3bd66760549526b7a57a9b700aa0d8f4eaa5703aee",
    "signature": "0xe3cfad5a718498de312bdbf53725fa45922973586cb05867d11d933955224f8960d35b0343ff9a5e89f4a06e8e3a66c9f537628a1bd370976b42515b60cb36d11c",
    "signer": "0x88ad765B72fb060B3adbae1FA44A6C64722E1781",
    "userId": "236177"
  }
}