{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "102143",
    "entityType": "User",
    "nonce": "0x3850bafad3348d088f82da8162fa530a7700c95b959e1f46b9cba945efac9647",
    "signature": "0x596f7dbe2df6d18f474d919c24e79cc3f01af2644734ff1901aa34569d6ad8c05c60b68d388a74f49d00ea44fe02e288ed64da2f3eb546890d48746e0052bd4b1c",
    "signer": "0xF2c19977A72e7f63bBbD9063748E52c002b22f6b",
    "userId": "957488166"
  }
}