{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "168572",
    "entityType": "User",
    "nonce": "0x7def0e86a0873c03bbe98a853ba0f7a3078716d5cc8a74bf078752a99062f69a",
    "signature": "0xf494ae023011fed22d01dd3ce96b212369af9988de248c669e31aabfdc93806158c92e67c43b57bbb60a1f1e92e72df7d36bef750763de370aeb66d926e92e491c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}