{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129684",
    "entityType": "User",
    "nonce": "0x5a431fcc4feede3d17b285c5a33568030d90667e20f6425dc4aaa1f675a6d28d",
    "signature": "0x89b9cc645484d4a9e8984c51108363791c393d4c51b6b5589740340a7740b20f5014ef76868f47a0c4950d0ee23a38288931bdad7b5e57f91d28f667c1dcb4921b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}