{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "34407660",
    "entityType": "User",
    "nonce": "0xcf01b54befbcccb2d4adf9f95c39f6a9a63b16e194fdb3eaa1dab954c8bed771",
    "signature": "0x2f960d47f34e0a61e99e24bedf455537b96dc72f4dbb9ac85662fa4b86c85f442c849fd1d626a594c6d8b86306b4a17a02c4190dbd3a69853231cc22516f21701c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}