{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13721",
    "entityType": "User",
    "nonce": "0x2c0735294f505dccd53857578446ed621bf64750993de20ce9fc97b4f56acd1d",
    "signature": "0xcfdc3c93c33356eb9be09c72933045a0964e2d0463ec9ad8c650f491491fc6aa12c12804e0899fa256539b07cfc68ef7de4f0e8bd2055091811b4856281dcb6e1b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}