{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "675830993",
    "entityType": "User",
    "nonce": "0x4dc017f9afa26472d263d6af6b708505ac58fdd34c888b1aa0ad09f8eca08e56",
    "signature": "0x8692924dd2706abbbcaa066913ea7f7cbc51972d5c4a901bfb8cbbc36036736a2acbd18045f3a084415ea237d65a19adacb6e4c27e5541eaaa305658b138e7db1c",
    "signer": "0x018849A3d6594093B7646022836BaaDF36aA36Ad",
    "userId": "702391481"
  }
}