{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0x5a552ac04661bbeeeaff335b238f20dd4d29d768e587f89519271030807e9558",
    "signature": "0x89e4d5e137d717a1478850d306fec74be52320fd978f742654db23daf505832f099f5a970d9f3fa661e04cd46bd0c04c8f22a6b799101e24b10e4c1c810fb43a1c",
    "signer": "0xFb410b7eB2293C024d555A6140342B981b76722d",
    "userId": "708890665"
  }
}