{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x0b422462cd8cccce8e24f22664123393d0f489429423c0161265312719ffb96e",
    "signature": "0x38e2a687ee583f6d89b6c4548decfd4fb9bbff78567d5db6bf83b343336295a4127c3075e2eb48b9af250adbe3e041858b2573b186c7d28bfd2222a2e3adc1771c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}