{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "373162",
    "entityType": "User",
    "nonce": "0x89dee0179f11ec8482ceeb2c7eec0c2dd07d7c90d958f3abe2eaf21b3bc6e401",
    "signature": "0xedd80c775285333799ebcdb10c82a2cb0f6777c145d2e6c380632d6e9c2e620b4ffe0e40d04a6388f92f566267dd8fad1616ec67f5369823f8e789a96d593c241c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}