{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "825801849",
    "entityType": "User",
    "nonce": "0xf1170f9e9d73854f1293db10de8f94b05be60263710a1a88f7e0f54561d68268",
    "signature": "0xb9305c76c370e2202e7859bee2fb35468659c9f70bb40d8601c90c64163fd19e56af80c929b619d4ce377396f0d5cd583f1ab3e8ada3a2cade435a9745781af31b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}