{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217405",
    "entityType": "User",
    "nonce": "0xdf8c07642c4324ce3bc54988339b6e734ce3dfa834c97266b8f6c9d0e5f46271",
    "signature": "0xa7c40f6d565e44045357333c041a29d4fd47974900a0214222ba8dbcad2fa2440c7f3c9d7bf970c332e5c9f3f98f72a8b0eb6302bdb717a9cdfc0baeb9d5ebbd1c",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}