{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "257465",
    "entityType": "User",
    "nonce": "0xcb89dad6dcae55abb89efac88435644bedd0ab968cbb57090946796647fc9e8a",
    "signature": "0xbe916daaf8416152eb59167802235caf64fbdfe5e1645680dd0d98bd35f2c97a1621fcb7a46f26f48d306d1e0938b6d317a34af42e9f37102d3fff8b186eae5f1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}