{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305370915",
    "entityType": "User",
    "nonce": "0x9b467a5d8ca9aec991ff82977b37fe3773020a014773abced2b0486a5f0d8096",
    "signature": "0x436abdf9e3f957a769259a4e9fa5b4bf673b426ae1dcd8895ffcfa8df2bac5d40dab85931c01a90c2c830551f63c95179905417ac67a7fb7157a8e4746135d2d1b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}