{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "698174",
    "entityType": "User",
    "nonce": "0x97e0c6b1d9f8a2fb99295b0aa75e669a16dfd1901992fb1601c61c34dca7cd30",
    "signature": "0xf6717ad680e0c0a99f623ad66d6c877a25a0c2f82203975aaf02f87a86d03da9413bf5a9540563d27f19ef4dd17de8ab0b3d81d5cb93ef661f0c182ff089482f1b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}