{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "709077025",
    "entityType": "User",
    "nonce": "0x5d2ec0404ab1b0032cf4bcf46481d6c3583aa8bf27e7d333c71786000177f9c2",
    "signature": "0x8d0769ed1f305bb38d7d616351394240af7f4ff581c763bde7aef338f6476f4d2c9ee51cd64d86ff79c72ed33399db55211d9d11b6538ed7fed8c7bdfa163b4c1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}