{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1044470",
    "entityType": "User",
    "nonce": "0x6de91a2e5d9c84a2d2dcdb25a27200fac0ff1cafe68bcd6e5a3520b554fb6e4d",
    "signature": "0xf50d00941bace82123c28a2971b607c563dd6f856101df617aeeb2d1a539912f49277e7a5fcb4948e9ce0da87dece660fcf21b4e6100f9d736a852d181c7142f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}