{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "317439",
    "entityType": "User",
    "nonce": "0x5a54d0e5ec35ab4e6228e993b13a6d7a9deb1eba5c0c8acd4890482bf3908819",
    "signature": "0x0df2157dacc8900c61a88e91a2a65b40500b51f706cb1f173af9285282963f301a8b5e4a48da222cc94e4dccb578fcd2257e52b691d8ff58934cd46e0b30c6131c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}