{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984259712",
    "entityType": "User",
    "nonce": "0xe842f3a0bd7105fbfdf97ce8e2994daf5cc785fb7aeba2c1328b96af7cbf13d6",
    "signature": "0x52c0f677e40e67ac526ec3e08e9183156c70d13a228dfb28803086636b14925251e00f55fcb44afb4cf69122f7d5cd8cf9ebe907de2bcecd599e03d510b249011c",
    "signer": "0x55A4f450E154CFC8D853cA521F452162C3881349",
    "userId": "748511997"
  }
}