{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984691913",
    "entityType": "User",
    "nonce": "0xfcfb3e5a5636c15a1bb00297cb9f6c3dacd7a3ed308939472ce34403e37611e9",
    "signature": "0x88ad00798d66eb3f83d3b58c2d631d472da429ba476a348665b6c6a824f8e3f46c59afeb709ba5c255f7effe7e256eac8f4506244e91c2bd3a8affd0c09934bb1b",
    "signer": "0xd648B38B61b65e4F8df57D4EE65560D8DaacFDb2",
    "userId": "277314120"
  }
}