{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0xc224446407a40f670ca1edb3204a25a5c38c90b96037f79b01d81b29411a1c01",
    "signature": "0x4c687fccba6dbb53b0591790ba5bb88921844adec8e6f1bf605f3a1c3873658379d51e8cf6b86403a340ee969c41da8b6f70d5f009250b43cb0de64d728ae4841c",
    "signer": "0xc95EFE880463dc9E6fC74760701bBb0A05704C9c",
    "userId": "95927626"
  }
}